Accurately Measure Light in Your Home: PAR Meter vs Footcandle Meter - Plant One On Me

Accurately Measure Light in Your Home: PAR Meter vs Footcandle Meter - Plant One On Me - Ep 053

Рет қаралды 23,792

Summer Rayne Oakes

Күн бұрын

Пікірлер: 55

@lindsaywendl7878 5 жыл бұрын

You are the only person I can find who made a video on measuring light for house plants and not just weed

@GrigorisDeoudis 5 жыл бұрын

Oh! that weed issue! I am searching for led growing lights every now and then and similar things related to cultivation of houseplants at home and everywhere are appearing these links about weed! I don't drink alcohol, I don't smoke.. I would like to see in the future Google search giving us the option to permanently ban things we don't want to appear in our search results, and to not have to write each time on the search field a train of keywords with the minus sign in front: *_led grow lights -cannabis - weed -hemp -pinterest_* (why did I exclude also pinterest? Because it gives irrelevant information when one wants to find specific things and not just stare to photos).

@SleepySin 3 жыл бұрын

Why the discrimination against cannabis developed products? The cannabis industry pushed the most modern technological advancements in the horticulture world. Not to mention, cannabis IS a plant.

@gokuzawa268 2 жыл бұрын

Measuring light for any plants is the same, nomatter the spiecies..

@kirradickens516 3 жыл бұрын

This was extremely helpful and has helped make sense of why I keep getting such confusing FC readings when measuring from different light sources, eg. inside terrariums /hot house /through window /direct outdoor /4X different grow lights... needless to say I’m buying a PAR metre pronto!! Thank you 🤗

@shariman1590 3 жыл бұрын

You are bad ass! I love the way you know what you are talking about, and you know how to explain it. Gracias!! I want one of those lights.

@cathijones3924 2 жыл бұрын

Great video full of lots of information . I have been wanting a light meter and your information is going to help me make a decision as to what I should buy. Thank you!

@relivoaddad 3 жыл бұрын

Great episode, but I would have appreciated an indication on how much we really need to spend for a light meter, if we want to get a general feel for how light levels compare

@georgianapetu707 6 жыл бұрын

This video is so useful and informative! Thank you!

@jpsmitra 3 жыл бұрын

Summer! Can you do a review on the Lux light app? Thanks!

@Notagain44 6 жыл бұрын

Very helpful. It was so interesting to see just how drastic the light changed just by dropping a few inches.

@geezlepuss7863 4 жыл бұрын

What is interesting? What would you expect? If you shine a flashlight into your eyeballs from 1 foot, you expect the same flashlight would be much dimmer if shined from 100 feet!

@omninova 6 жыл бұрын

Your my hero summer!

@CrossfitCarlos 6 жыл бұрын

Thank you for the channel

@petercardona1559 6 жыл бұрын

Brava! What a superb and informative presentation. Words can not describe how happy a Plant Nerd I am right now!

@CraigOverend 6 жыл бұрын

I think your foot candle meter is confusing because it's faulty and the range switches X1, X10, X100 aren't calibrated properly. They aren't channels. X1, X10, X100 should multiply the voltage output of the photodiode at the top of the meter by the X number and then display that on the voltmeter labelled with LUX and Footcandles. On X100 when the meter is reading about 300 LUX (300X100 = 30,000 LUX) and you switch to the X10 range, the needle should be at the far right off the scale on 3000 LUX (3000X10 = 30,000 LUX). Instead it reads about 1700 (1700X10 = 17,000), yet the illuminance reaching the meter hasn't changed in the time you flicked the switch. There may be adjustable potentiometers on the back or inside to calibrate it, or a range resistor or the range switch has gone bad on a range. You could try to calibrate it to the Apogee Quantum Flux, but I'd just use that.

@StefanNaydenov 4 жыл бұрын

Nice comment! Actually all light metering devices must go over calibration from time to time... And maybe that's why I'm still relying mostly on my eyes. :)

@luzadrianamonsalve4342 6 жыл бұрын

Thank you for your videos, Summer! I'm concerned about the fact that I use artificial lights in my home late into the night. Are my plants suffering because of it?

@jurpik35 6 жыл бұрын

very nice

@DJTechnoboom 3 жыл бұрын

i use a lux meter, i find if i can get the plant to around over 60,000-90000 lux is the best, for regular house plant's i would assume around 40,000-50,000 lux should be efficient enough

@missjuliawinston 6 жыл бұрын

Could you please make a video about plant lights?

@summerrayneoakes 6 жыл бұрын

that's coming up in next edition.

@missjuliawinston 6 жыл бұрын

Hooray! :) Thank you!

@alessazoe 6 жыл бұрын

I’m wondering... doesn’t x10, x100 etc. mean it scales the measurement for convenient human readability on the shown scale? imho, these aren’t seperate "channels" in this sense?

@MightyGodofGods 6 жыл бұрын

Make sense that it's just scale changes. Just like a multimeter or any other meter I have used.

@summerrayneoakes 6 жыл бұрын

in this case it's to accurately measure a specific type of light because as I shared, footcandle meters can't measure different point sources of light (e.g., sun AND fluorescent). So this one that I'm using can only read up to 5000 footcandles, And the "channels" have to be correctly switched to, meaning fluorescent light, bright sun, OR high intensity su.

@alessazoe 6 жыл бұрын

If the scale switch works the way the labeling suggests (switching the meaning of the above scale to show x10 or x100 amounts!), then this just means that very low light that you can measure, say, with the x1 "channel" just adds up about close to nothing to bright sunlight for which you need the x100 "channel"... think about it. Or maybe ask a physicist more fluent than me in English to explain it better. :)

@summerrayneoakes 6 жыл бұрын

I think we might be saying the same thing allesazoe, though I'm not sure. :) I'm using the word "channel" but the first channel X1 (Fluorescent) maxes out at 250. Then if it maxes out, you need to switch to the next channel (which maxes out at 2500), and then you have to switch that to next one. So you can say, "low light plants prefer the X1 channel" and "higher light plants prefer the X100 channel". However, the challenges with the footcandle meter still exist (and as demonstrated): it measures perceived brightness to the human eye, which isn't accurate to what a plant "sees". And blue-red wavelengthss, which are really bright don't read correctly in the footcandle meter for this reason. Additionally, you cannot have multiple light sources coming in, which is another challenge.

@ummibrahim6126 6 жыл бұрын

Just one word : Fabulous job

@laetitialalila7390 6 жыл бұрын

Hello Summer, thanks for another great informative video! 😘 What are your thoughts on light meter apps on the smartphone?

@summerrayneoakes 6 жыл бұрын

they're not there yet. They can't get that sophisticated yet with the phone.

@laetitialalila7390 6 жыл бұрын

I see, thank you. Love everything about your channel! 😘😘😘

@lismarienatal 6 жыл бұрын

Hello Summer! I just recently purchased a Hoya Hindu rope. Do you think this plant would benefit from the terra-cotta spikes you have (connected to a tube and a jar of water). I purchased the ones you have for all my indoor houseplants and they are amazing, but wondering if that would be to much or to little for the Hoya.

@nibiruthecat7652 5 жыл бұрын

I second this question 😉 I just purchased a hoya carnosa compacta and am very nervous about it's care.

@samanthamountain9764 5 жыл бұрын

That would be too much water for a hindu rope

@amandapisanilionetti4947 6 жыл бұрын

Any tips on watering the monstera deliciousa? I’m a new plant mommy and also spent a lot for her and I just never know when to water or if her soil is moist enough. Help! Anyway to water by like cups, any type of measurement? I’ll take any advice. Some leaves kinda like lighter in a green color and a little weak, wiltey . Thanks for the help! Also, purchased her from sprout home in Brooklyn 🙂

@oreo5197 6 жыл бұрын

I Water mine a inch up of the pot from the moisture. Then I wait more or less one week. Im not english. If you dont understand me, tell me and Ill try again...

@amandapisanilionetti4947 6 жыл бұрын

O Reo can I email you pictures and tell me if it looks ok? LOL I watered it a little Tuesday and today because i had left over water in a cup. I won’t water it anymore tho for a week

@oreo5197 6 жыл бұрын

Amanda Pisani okay, if you want me to look at it... Dont you worry to much. Dont water it a lot. Just once a week. My grandmas plant only recieves water from the rain...

@oreo5197 6 жыл бұрын

You should place it in where it recieves a Lot of light, Thats the most impotant thing.

@ginagypsy 2 жыл бұрын

Off subject but we're can I get the 2 round pots in the video?

@milescunha5286 4 жыл бұрын

😍

@d3r4g45 6 жыл бұрын

id like to see the same comparison also for a light meter app.

@summerrayneoakes 6 жыл бұрын

light meter apps are more akin to footcandle meters. They're not there yet.

@HeadleyDuncan 6 жыл бұрын

looking for 2 of them led grow lights

@geezlepuss7863 4 жыл бұрын

Are not foot-candles merely the English units equivalent to LUX, metric? You can buy lux meters. I don't think they have any 3 scales to switch. Your 3 scales should all give about the same reading so long as not off scale, only the needle will point to a different spot on the meter requiring you to multiply by either 1 or 10 or 100. In other words 1000 on the X1 scale should mean the same as 100 on the X10 scale or 10 on the X100 scale. Of course one or another of the 3 choices may have better accuracy.

@keepthefaith1912 6 жыл бұрын

how do I get rid of this fuzzy white things on my Banana plant ..most are gone.(neem oil)

@summerrayneoakes 6 жыл бұрын

mealy bugs? Ep 15!

@juliavazquez5222 4 жыл бұрын

I have a foot candle meter app on my phone and it isn’t accurate at all. I scanned a window with direct full sun and it said very low-low light😂

@geezlepuss7863 4 жыл бұрын

On Amazon you should be able to buy a LUX meter for under $30. An iPhone does have a camera in it -- new ones have a triple camera. So I suppose some app might measure light intensity (Lux) with an iPhone.

@ballamoto 3 жыл бұрын

A lot of those apps use the front sensors on the phone, you were maybe facing it the wrong way 😁