LUX meter to PAR meter hack | Use a cheap LUX meter to measure PAR

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3 жыл бұрын

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Learn how to use a lux meter to adjust your grow light height for maximum PAR: • How to setup your grow...
I test four cheap Lux meters from Amazon to see if they can be used to measure PAR (Photosynthetically Active Radiation) so you can use them to optimise your grow light setup. The measurements are compared to the benchmark quantum sensor for measuring PAR from Apogee which costs about $500. The results are surprisingly accurate.
The Lux meters were tested with the two most common spectrum in LED grow lights sold in the last few years, a 3500K or neutral white LED and a White LED with added red LEDs. Other grow light spectrum were not tested and thus hack will not work for HID or 'Blurple' led grow lights (with blue and red diodes only).
Each Lux meter reading was graphed against the benchmark quantum sensor readings. On the top of each chart is the factor to apply for each Lux meter to convert the lux readout to PAR in µmols/m²/sec.
For example if you are using the UNI-T lux meter and you have a white and red LED grow light you multiply the LUX readout by 0.017 for the PAR equivalent.
Lux meter specs:
Light meter AP-881E light meter for plants Illuminance meter Lux meters with Display 3999(Range from 1～300,000Lux
Mastech MS6612 Lux 1 to 200000
Uni -T UT383 Lux meter
V resourcing Lux meter 1 200000 lux
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Пікірлер: 149

@MichaelRainabbaRichardson 3 жыл бұрын

I was trying to get my hands on a decent sensor 6 months ago to do this very project. Thank you for doing it and putting it out there for us. As someone who has worked in production I appreciate the amount of effort that goes just into production. You've gone way above and beyond here!

@999fine5 3 жыл бұрын

Thanks for this info. Absolutely priceless for the passionate, broke home growers.

@420fan2 3 жыл бұрын

You talking about me? Lol

@ashleyember6822 3 жыл бұрын

Me too.....😭😭😭

@ashleyember6822 3 жыл бұрын

@@420fan2 Do you have any change you can spare?😭😭😭

@420fan2 3 жыл бұрын

@@ashleyember6822 I'll trade you quarters. Lol

@ashleyember6822 3 жыл бұрын

@@420fan2 OK sure,I have one 2018 quarter and a "rare" 2002 quarter.would be looking for something Xtra for the latter!😳

@jakebrake7054 2 жыл бұрын

As usual, Shane comes in with the crucial knowledge. That along with how he has figured out the conversion multiplier for each is a breath of fresh air in a world that gives benefits to swindlers. I appreciate your assistance in helping me chart out my lights!

@timturk1899 3 жыл бұрын

Great info! Can't wait for more. Great topic Shane!👍💜🙏

@yc1825 3 жыл бұрын

Always coming with the best info for us home growers! Thank you!

@martinweber3859 3 жыл бұрын

Really waited for this. Thanks

@GardenGangster 3 жыл бұрын

Thank you so much Shane this information is so helpful I am now ordering a lux meter

@mzaleski3 2 жыл бұрын

Very Helpful, thank you for your great work!

@biderz 3 жыл бұрын

Game changing information, thanks again Shane!

@MattGarver 3 жыл бұрын

Super useful information, thank you Shane!

@Crazypug-eh7xi 3 жыл бұрын

Awesome info, thanks for breaking things down

@ghostschiphon 2 жыл бұрын

Doing right by the community with every nugget of information you share. Cheers

@deanphillips2500 3 жыл бұрын

Thank you for putting in the time. My Uni-T is on its way

@fernandojimenez115 3 жыл бұрын

You are seriously the best. Thanks for this information

@jackandthegreentalk 10 ай бұрын

Thank you for doing this, much appreciated!

@northendgaming3831 3 жыл бұрын

thank you Shane! this is far more accurate way to measure the light then using the phone app.

@adidas1439 3 жыл бұрын

Thank you for sharing Shane.

@zumbaladin 3 жыл бұрын

That will make me buy a lux meter for the next grow. Thanks for sharing all your research Shane.

@johnroehsler6440 3 жыл бұрын

You can download a lux phone app.... but I like the Dr. Meter lux meter for $20.

@cmmnsenserules4339 9 ай бұрын

wow that's alot of work. Thank you!!

@kitrussell9358 3 жыл бұрын

Thanks great info 👍

@EdSilvia1 Жыл бұрын

This is great, thanks ever so much. I ordered the Uni -T UT383BT Lux meter w/ Bluetooth which has the lux to par app for my phone.

@joshifukyeah 3 жыл бұрын

Very useful for DIY led projects as long as they are 3500K leds. This way we can measure see how the ppfd charts compare to other store bought products. Thanks!

@tableshaper4076 3 жыл бұрын

Thanks so much!

@charlycharly8800 3 жыл бұрын

Gracias de nuevo Shane por compartir tus conocimientos, hacer la vida más sencilla a los cultivadores y por tu trabajo, saludos desde España, eres mi máximo referente y Guru, enhorabuena por tu trabajo te deseo grandes éxitos salud y dinero

@sixbitsnigerino 3 жыл бұрын

Thank you Very much!

@stephenrooneyphotographywa9428 3 жыл бұрын

Great info thank you

@olebruh Жыл бұрын

You are amazing. Thank you for this. All the other factors ive found online are for older led light spectrums.

@MIGROLIGHT Жыл бұрын

You're welcome!

@davidfox734 3 жыл бұрын

What a legend!

@rorymaciver5756 3 жыл бұрын

Well done Thank you

@brasco8721 2 жыл бұрын

I'm amazed at how close the UNI-T UT383 is! I'm going to have to pick one of those up.

@diamondsky3530 3 жыл бұрын

The amount of work you put in in regards to lighting is incredible. Thank you for all your hard work to bring us this information✌🏽❤️🥃🌳

@ilazar74 10 ай бұрын

Thanks .. I have exact the same Lux meter .. AP- 881E . But with the Photone App with Selfmade Diffusor you have the same values and you don't have to convert anything, works great 👍 You make a nice content 👊🙏

@m.b.boyack2228 3 жыл бұрын

Cheers Shane.

@Unbestochen Жыл бұрын

thx for that!

@velvetsprinkles 3 жыл бұрын

Thank-you!

@frankchenoweth5145 3 жыл бұрын

Good job thanks

@ericroadking7564 3 жыл бұрын

Awesome thank you so much for your time. This information is really appreciated!! Nice you included the led with red leds as well the number for the AP 888 IE has changed from 0.022 to 0.028. Look forward to the next averaging video thank you,!!!!! Be blessed!!

@dmathis510 2 жыл бұрын

Awesome content. Have you by chance had time to do the conversion for lights that have mixed 3500k with 5k and reds? Or would it be the same as the 3500k with reds? I have the 881E lux meter that I would like to do this with my light to dial things in.

@shaunm1983 3 жыл бұрын

Thanks man

@boldalx5351 2 жыл бұрын

Hi.Great video.I’m very new to measuring light but wanna learn.Will this work on a FC 4800?

@OctavioPlatania 3 жыл бұрын

Thank you very much

@shaneburnett380 3 жыл бұрын

Hi thanks for the conversion on the lux to par I've got the Bt--881D lux meter it looks alot like the AP- that you used should I be safe using the 0.028 × ??? For par?

@giskio 3 жыл бұрын

Thanks!

@harryharrison8173 3 жыл бұрын

Hope you check this out Shane .I'm wondering in a 4 x 2 foot room do you think two 100 watt led grow lights or three 65 watt grow lights . And through to harvest

@glennbonnici8883 2 жыл бұрын

so this will work with a spider farmer sf4000 with your red spectrum graph ? Many thanks priceless info. new subscriber.

@mrkvickov 3 жыл бұрын

great work, would be nice to add a comparison with HPS/MH to those LUX meters

@andreknudsen3272 3 жыл бұрын

Thanks Shane

@brettpetric8445 2 жыл бұрын

Hi Shane thanks for the video! But I’m not familiar with all the technology and the devices used to find PAR output. I recently bought the AP-881E and I’m tryin to understand how to operate the device. I simply turn it on but there is so many numbers a and stuff on the screen and I’m not sure if I need to select one of the options/buttons on the touchscreen/keyboard. So basically all I’m asking is how do find the right setting do I need to set it in a certain mode? or is it ready to go as soon as I turn on the power? And how do I covert the number it’s readin into PAR so I can see what kind of heights I need to hang my lights above my canopy. I’m sorry I’m not familiar with those gadgets and tech so bare with me please I really want to understand this cuz it’s can help my grow! Thanks for your time and knowledge!

@NotSkarblox 3 жыл бұрын

thanks again other great video i have hlg rspec 240watt AP-881E lux meter i would multiply 27000 0.028 get par reading 756?

@brettpost4605 2 жыл бұрын

What if you have full spectrum like Mars sp3000? What's the best conversion rate? I assume using the 3500k +red would be pretty close right??

@Anthony-zi8ty 3 жыл бұрын

Thanks nice one

@letsgrowtogether473 3 жыл бұрын

Thank you

@peerrucke2599 Жыл бұрын

Does anybody know what the right conversion factor would be for the popular "Knockoff QB288" from ALi express? The ones with 32xEpistar 660nm, 4xIR and 4xUV? i guess it would also go in the x0.017 direction/devided by 60?

@creed981 3 жыл бұрын

What about with the Dr. meter model? What would i multiply there for? Still tons of growers who use the modern day leds still like to use cmh for supplementary light so I think that you should at least include that form of HID. Many thanks Shane, take care and stay safe 🙂

@Avation911 3 жыл бұрын

Shane why dont you have ppfd charts of the hps you test. Would love see spread and true comparrison

@SagaRecordsRJ 11 ай бұрын

I see 5 figures in the graph range (0-80000) but only 4 figures in the Uni-t meter. Can anyone explain?

@blackeyesforyou 3 жыл бұрын

Strange question but if you were to hang and test an old LED television, what reading would you get? Does changing the picture on the screen produce different results? Does LCD produce a measurable reading? Great channel.

@gregcloe1197 4 ай бұрын

Hello, I wanted to ask you a question about led lights, Ppfd lux and led distance and intensity 25% 50% 75% 100% plants? Thank you

@stevepechon5174 3 жыл бұрын

Somebody HELP! Looking for a conversion for PatinumLED 11 band grow light. P1200 model.

@cmmnsenserules4339 7 ай бұрын

FYI TO ALL::::::: YOU CAN RENT PAR METERS. I rented mine from a "large 'blue and white' hardware store". 30 bucks for 24 hrs.

@BryanByTheSea 3 жыл бұрын

I would suspect if using a 3100K ceramic halide the White Led +Red is probably the closer of the two?. Would love to see a comparison to a Ceramic metal halide.

@rojenvincentmedino7502 2 ай бұрын

How do you obtain the conversion factor in each lux Meter?

@cmmnsenserules4339 7 ай бұрын

Using my Viparspectra XS2000 and my KS5000, Ive done the comparison myself, with a rented Apogee 610...and the Red Lux meter i own, not sure the brand, and yup, its within single digit PPFD readings. 👍

@yesicanu 3 жыл бұрын

Thanks! Realizing that there is any common denomination whatsoever means I don't have to buy a par meter. I wouldn't anyways, it's not my first rodeo. Everyone fails the first year, too much water first run, too many nutrients for the second, etc.. After that, if you don't have lighting figured out? Go outside or keep buying everything that sellers sell.

@Industrious420 2 жыл бұрын

I would respectfully disagree. Not everyone fails their first attempt(s).

@yesicanu 2 жыл бұрын

@@Industrious420 Let's define failure. Failure imo is any yield less than the maximum the light can produce. A lot of growers, I'm not including you, get bud and they think they're winning. Are the colas 18", dense, with one in every trellis hole? Those are some of the things I look for in not failing.

@Industrious420 2 жыл бұрын

@@yesicanu for a new grower getting a plant to harvest that you can smoke & gets you high is a success imo. I can't speak for everyone but I just grew for the first time in my life and pulled 26oz of very smokeable bud from a 4x4 with 3 plants.

@yesicanu 2 жыл бұрын

@@Industrious420 Yeah, we just come from different camps. They guy who taught me to grow was a bit of a perfectionist with one standard. Congratulations on your first grow, that's a good yield. I hope the rest follow suit.

@Industrious420 2 жыл бұрын

@@yesicanu I frequent a lot of forums. I did a ton of research and dove in head first asking questions. I get what you're saying usually the people that do well are perfectionist type personalities. And thank you! I was super excited and am already looking forward to correcting a few things on my next run

@codis3124 3 жыл бұрын

Awesome info can apply with my flower light (hlg550v2 rpec) Hoping you will do a calculation for 3500k white with blue for my veg led (hlg 300L bspec)

@DJTechnoboom 3 жыл бұрын

i do this with my cell phone, and then there is another app that can convert lux to par, it seems to work for me, you just have to find a lux meter app that work on your cell phone, for me only 1 of them work. it works really good but the app crash's alot and i have to keep reinstalling it, but hey its free so whatever.

@darrylshannon3409 3 жыл бұрын

Yup the Irish great to see 🇮🇪🇮🇪💚

@ivangarcia-ph3tx 3 жыл бұрын

Hi migro. In the secomd chart the lux meter Uni -T UT383 need multiply for 0,017 for ppfd. But the blue line (par meter line) and the purple line (Uni -T UT383 Lux meter line) are both exactly in the same place. And in the first chart the blue line (par meter) and the purple line (Uni -T UT383 Lux meter) are more separate than the second chart and the multiply number is (0,014) lower than the second chart where the blue and purple lines are in the same place. Is that a mistake???? Please tell me something because i cannot understand why. and make me be confused. Thanks a lot.

@Battlem0nk 2 жыл бұрын

My interpretation is the purple line is the values given by a real expensive PAR meter in lux. The blue line is a UT383 which is very close to the PAR meter. Multiplying by 0,017 is not a error correction multiple between the lines, but a conversion factor to convert lux to ppfd. Even if the blue & purple line are exactly the same you still need to multiply by something.

@koenharteel3195 3 жыл бұрын

Plz review the xiaomi light sensor

@navazoff 2 жыл бұрын

merci

@FuF3x 3 жыл бұрын

Great info could u maybe do uni-t for 3000k light and 3000k with red

@MIGROLIGHT 3 жыл бұрын

Result would be very similar for the 3000K CT

@genoleso2035 3 жыл бұрын

On IG you shared a completely different datas..i bought TWO mastech becaus the only one accurate and right know i know it is not?

@stephenjohnson1579 2 жыл бұрын

I bought the Uni-T and AP-881E, and I've been using the conversion factors for the 3500K LED. I built a DIY set-up using 2700K bulbs. Will the conversion factor be close to the 3500K number? Or can you do calibration for the 2700K bulbs?

@Battlem0nk 2 жыл бұрын

My guess 2700K LED would probably be about 0,018

@ivanmaslac8366 3 жыл бұрын

Hey Shane, have you tried to compare luxmeter app (Android) to how it compares to standard lux meters/ Qs? Since there is online calculators to convert lux to ppfd it wold make it even easier. Thank you

@MIGROLIGHT 3 жыл бұрын

Lux meter apps for android are flawed in my opinion. The sensor range on Android phones is too variable and the apps are not calibrated for each type of phone. The iPhone lux and PAR apps are more reliable because the sensors are the same.

@andrewbee82 4 ай бұрын

TS 1000 is considered 3500 or 3500+ red?

@samaarons9528 3 жыл бұрын

Hey Shane, can I buy this off Amazon? Is it the same product as the one listed on the manufacturers website?

@Battlem0nk 2 жыл бұрын

UNI-T 383 is sold direct by the mfg on amazon. I got one. Not sure about the other brands.

@derek1981440 3 жыл бұрын

What about Android and Apple phone apps I use a par meter app in the android store. It's free so I'm sure the accuracy is way off. It seems to be working

@pierreshasta1480 3 жыл бұрын

It's interesting, but it will still be limited to a few spectrums. In my opinion, when you start growing plants under led, it is important to use a PAR meter. It's true, Apogee is expensive, but you can find a much cheaper PAR meter, for example, the Photobio from Phantom has a much cheaper price (about 160$), it's what I use and I'm satisfied.

@tucker2074 Жыл бұрын

have a look at the two spectral graphs these lux meters cover, its about 99.9% of all standard led grow lights, but if you have $2000 to drop on a light then another $200-$500 isnt going to matter

@AlexeyDnepr Жыл бұрын

@@tucker2074 You say that it makes sense to overpay for Apogee? But why?

@pacoloose5631 3 жыл бұрын

Hi Shane,Ive been using the AP811E since you published the hack first time.Since you tested the lumateks Zeus is that a 3500K?also when you say white light does it mean no red at all?As an example Fluence Spydr looks white but has reds, and zeus look yellow and also has reds.Thanks mate the old hack has served its purpose very well

@pacoloose5631 3 жыл бұрын

I actually just remembered Fluence told me their Spydrs were a 4 K, does the 3,5K chart aplies?

@tucker2074 Жыл бұрын

@@pacoloose5631 just look at the spectral graph, the second chart covers 99.9% of standard led grow lights, look at your lights spectral graph and i bet its the same as the last one

@DMcC-lw1tc 3 жыл бұрын

Contacted ECO SPEED LED GROW LIGHT, said their sendin you a grow light for testing, just out of interest to see if its any good,👍

@lanceowens5902 3 жыл бұрын

Thanks again Shane helping us busted broke ass pot head's hahaha love you brother keep up the good work

@Rob99in 2 жыл бұрын

Hi Shane, I'm searching for quite a while one video of you where you showed a chart wich shows the Lux to PAR values. I remember to look for about 40.000 Lux with my Luxmeter. I cant find it anymore. Thought it is in this video. Maybe you can help me out. Btw. thank you for your absolutely great videos, we love u Shane! Greetings from germany:)

@HiNeighbor618 Жыл бұрын

Hey Hey I was number 1K to like the video!!!! Good information Shane

@derek1981440 3 жыл бұрын

Sorry Migro just got you're vid on ios 😎

@falldogg8606 Жыл бұрын

Thank for the vid broseph🦨💨

@BroScience710 11 ай бұрын

What about the cheap par meter that you pair with an app.

@itmaslanka Жыл бұрын

I thought you could get a par reading and the multiply or divide by a number and get a Lux number.

@dico8178 3 жыл бұрын

Hé Shane, Dirk from the Netherlands here. Love your video's. I ordered the UNI-T lux meter from Amazon to calculate the ppf. But is there a big difference if i have for example a 3000k or 3500k color temperature? Best regards Dirk.

@MIGROLIGHT 3 жыл бұрын

Dirk, not a major difference with 3000K and 3500K, they well read very similar.

@ivangarcia-ph3tx 3 жыл бұрын

I have the uni-T UT383. And im very confused because in the video i see in the second chart the lux meter Uni -T UT383 need multiply for 0,017 for ppfd, but the blue line (par meter line) and the purple line (Uni -T UT383 Lux meter line) are both exactly in the same place. And in the first chart the blue line (par meter) and the purple line (Uni -T UT383 Lux meter) are more separate than the second chart and the multiply number is (0,014) lower than the second chart where the blue and purple lines are in the same place. Is that a mistake???? More separate lines means more high number multiply for conversion. And in this case it is oposite. Do you think is a mistake???

@dico8178 3 жыл бұрын

@@ivangarcia-ph3tx the first chart is only white led and the second chart is white + red led. It is a slidely different conversion.

@ivangarcia-ph3tx 3 жыл бұрын

Ok!! Thanks a lot man!!!

@dico8178 3 жыл бұрын

@@ivangarcia-ph3tx your welcome👍

@AthosRac 3 жыл бұрын

okay

@unclejake1476 3 жыл бұрын

It would be cool if you added a Lux meter from a cellphone app.

@alcurtis93 3 жыл бұрын

His previous video

@johns818 8 ай бұрын

speed up video playback to 1.5.. you're welcome.

@spirit210364 3 жыл бұрын

UNI T available on eBay

@valfodr 3 жыл бұрын

Would it be possible to get the factor for LUX/PAR conversion from a spectrum only? That is usually available on the manufacturer's website

@ashleyember6822 3 жыл бұрын

OK sure.

@valfodr 3 жыл бұрын

@@ashleyember6822 I mean a general rule, not a specific one. Some way that one could take the spectrum from a manufacturer (any) and obtain a conversion factor

@braddream77771234 3 жыл бұрын

I have a lux meter on my phone 📱

@peerrucke2599 Жыл бұрын

looks like the unit-T is the only one that shows the actual Lumen correctly.

@soulprice5428 3 жыл бұрын

should do leds n u.v mate.....its the most used lighting system that not only everyone thats just starting in growing jump tword but people that already do well with there grows are switching to leds n ect...it be sick an ever EVER HELP FULL if you listed them ...ether way thank you for all you do and done could you lest help me with the mathing system run down you used to convet them an figer out...ill post my email if so ....that y ur math ways arnt known lol its ok tho if not I do under stand fr

@IRailroad 3 жыл бұрын

😎4️⃣5️⃣

@leandroduque6924 2 жыл бұрын

Boss

@iainbambury1888 3 жыл бұрын

Lux I'm from. Scotland can you help a brother out looking for cheep full grow tent starter pack sir want do deep water culture system please gt bk to me

@smeghead7698 3 жыл бұрын

Just ordered a uni-t 383 meter, only £16, bargain.

@ivangarcia-ph3tx 3 жыл бұрын

I have the uni-Tut383. And im very confused because in the video i see in the secomd chart the lux meter Uni -T UT383 need multiply for 0,017 for ppfd, but the blue line (par meter line) and the purple line (Uni -T UT383 Lux meter line) are both exactly in the same place. And in the first chart the blue line (par meter) and the purple line (Uni -T UT383 Lux meter) are more separate than the second chart and the multiply number is (0,014) lower than the second chart where the blue and purple lines are in the same place. Is that a mistake???? More separate lines means more high number multiply. And in this case it is oposite. Do you think is a mistake???

@smeghead7698 3 жыл бұрын

@@ivangarcia-ph3tx hi ivan. The first chart(0.014) is for white LED only, the second chart(0.017) is white+red LED. For two different light spectrums. What light do you have Ivan?

@ivangarcia-ph3tx 3 жыл бұрын

Hi!!! I have samsung lm301b 3000k cri80. Then i have to use the first chart??? The first chart is 3500k and my spectrum is 3000k. I dont know if the factor multiply must be change a littel. Thanks.

@smeghead7698 3 жыл бұрын

@@ivangarcia-ph3tx yep, use the first chart 0.014, the difference between 3000k and 3500k will be minimal.👍

@ivangarcia-ph3tx 3 жыл бұрын

Ok thanks man!!!