What is an LED? A very basic introduction to how a light-emitting diode works. In the simplest terms, a light-emitting diode (LED) is a semiconductor device that emits light when an electric current is passed through it. Light is produced when the particles that carry the current (known as electrons and holes) combine together within the semiconductor material. Since light is generated within the solid semiconductor material, LEDs are described as solid-state devices. The term solid-state lighting, which also encompasses organic LEDs (OLEDs), distinguishes this lighting technology from other sources that use heated filaments (incandescent and tungsten halogen lamps) or gas discharge (fluorescent lamps). Different colors Inside the semiconductor material of the LED, the electrons and holes are contained within energy bands. The separation of the bands (i.e. the bandgap) determines the energy of the photons (light particles) that are emitted by the LED. The photon energy determines the wavelength of the emitted light, and hence its color. Different semiconductor materials with different bandgaps produce different colors of light. The precise wavelength (color) can be tuned by altering the composition of the light-emitting, or active, region. LEDs are comprised of compound semiconductor materials, which are made up of elements from group III and group V of the periodic table (these are known as III-V materials). Examples of III-V materials commonly used to make LEDs are gallium arsenide (GaAs) and gallium phosphide (GaP). Until the mid-90s LEDs had a limited range of colors, and in particular commercial blue and white LEDs did not exist. The development of LEDs based on the gallium nitride (GaN) material system completed the palette of colors and opened up many new applications. Main LED materials The main semiconductor materials used to manufacture LEDs are: Indium gallium nitride (InGaN): blue, green and ultraviolet high-brightness LEDs Aluminum gallium indium phosphide (AlGaInP): yellow, orange and red high-brightness LEDs Aluminum gallium arsenide (AlGaAs): red and infrared LEDs Gallium phosphide (GaP): yellow and green LEDs

Nice design. Try to sand the flat side of the lens with very fine sandpaper. So it will diffuse the light and you won't see those little blue squares any more.

When I heard that motorcycle revving up in the background, I thought: "No, NO! That can't be the fan!"

hey can u pls give details about each part which is used like led , battery , lens and all with voltage details....pls

Was that a neighbor that was lit up at the end of the video like a police helicopters spot light? Lol. Growing up in a place where our managers apartment was where I grew up never knowing why mostly every night before bed as a little boy I noticed that I would feel like it was more than just that, it felt like one of God's angels hovering in circles with that powerful light transforming our home from darkness to daylight till I would fall asleep knowing that I couldn't look at it or wonder why when I would need the sleep I'd I didn't want to feel groggy for catholic school in those days when it used to be called sacred heart. Ty,I'll try to diy it as you illustrated so clearly . God bless

with this build, you'll short the lifetime of the LED, use a constant current step up converter instead

You connect the led directly? Without a led driver?

Nice work! have you tried it during the daytime? i just wondering if it can eliminate the deep shadows made by sunlight.

I'm so triggered by your thermal paste spreading method

ผมว่าเลนส์มันไกลจากหลอดหรือไกล้ไม่แน่ใจ เพราะผมว่าแสงมัรยังไม่เต็มที่

หลอดกับลูกแก้ว อยู่ใกล้กันเกินไปค่ะ ต้องขยับออกอีกประมาณ 2 เซน แสงจะเต็ม แล้วมันจะเป็นสีขาวนวล

Very nice.. Just think how much brighter it would be if the LED was closer to the Lens :)

nice make, very bright light

You got lucky with the led. I wonder where you did buy it.

Really, really nice! But what is that lens? From whadid it came from?

Everyone should have one of these!

Don't you lose a lot of the light having the lens so far from the LED? If that's a Lambertian radiator, and it probably is, sort of, then you'll be wasting 50% or more!

without matched/balanced cells, it would be very dangerous to recharge unless you charge each battery separately

Good work i like it, but it shows each LED that is lit on the block

Good, why not use the LED reflector, beam will definitely be stronger.

Great!! but you will soon blast your LED unless you balanced the power

Here did you get the plastic or glass dome that big, I buy the little ones in a plastic version for my 10watt LED chips.

พี่ใช้แบตอะไรหรอคับ

I think the lens is too far from the matrix because in the matrix, the illumination angle of 140 degrees. And so all the cool done.

hey you, say the name of the things that you using.

hello sir, i want to ask you that how many amps getting by 100 watt led with 35volts step up converter from 12 volts battery...

Good work, thanks for sharing! ;-) In my Video you can see a version with an second lens - a fresnel type. And with a dimmer solution...But ok, no one like the dimmer... ;-))

Hi, where is your voltage booster, did you use one?

ขอบคุณสำหรับความรู้ครับ อยากทราบว่า ไฟ 100W LED ซื้อได้ที่ไหนครับ

Спасибо за видео и текст. Очень подробно.

how long would a decent sized battery last?

where did you find the glass prohector?

Do you know how to convert an led bicycle led for automobiles ?

genial Sigue asi qisiera aprender eso

What is the title of this music

good job !!! What battery you use ??

не жалей термопасту

you have make a documentation? :D

พี่ครับใช้แบตต่อหลอดมันตกที่กี่ V. และกี่M. ครับ

how long can be light with that battery??

2:32 is that peanut butter you are using as thermal paste?!

i didnt think leds produced heat?

ถ้าจะซื้อเลนส์ กับ LED บอกเค้ายังไงครับ

so nice bro

There is vampire in shadows, use this flashlight to kill him :-D

เจ่งมากครับ

and what are the components required (circuit boards)

รบกวนสอบถามหน่อยครับ หลอดLED กับเลนท์ หาซื้อที่ไหนครับ

what heatsink model is that?

wtf?? CHEAP?? Is anyone asking how much that xenon headlight lens cost? it's about 60-70$ only the lens

А где драйвер? потеря потока при такой конструкции большая, КПД процентов 60

What about AC input?

พี่ใช้แบตอะไรหรอคับแบตมอไซใช้ได่เป่าคับ

แบตเตอร์ กี่โวลครับ

ยุ่งยากขนาดนี้ซื้อเลยดีกว่ามั้ย😆😅😆

njayyyy cpu cooler

Nice job!!

Si le pones esa pasta pègamento el LED no hace contacto con la placa disipadora de calor.

good

Cool

how much volts required for 100watts led how much volts battery required for 100w led

well, I think I'll stick to LedLenser

i want to buy it

พีทำขายหรือป่าวคับ

nice

Good danger

that's awesome

這燈哪裡買

Dimana cari lampu senter led

สุดยอด

Как он термопасту наносит...

how recharche de baterie?????

exelent

Es war echt cool

แล้วราคาเท่าไร

Peanut butter?

แล้วก้อที่พี่ทาหลอดไฟมันคืออะไรจำเปนแค่ไหน

buat cari durenn cocokk

អេម

Tekniğin iyi ama geliştirmelisin

ขายไหม

หลอดไฟดวงเท่าไหร่ครับ

ខ្ញុំល្អ

que voltaje le pusiste?

น่ากลัวเกินไป

es 12v o cuanto vortaje

Like!

Is ksy battery kay youse kiya

666厉害了Word哥

ne yorayim ?

this light is to much bright that it can also blind ghost f

👍😎

solo le di pulgar abajo asi no quedaba el 666 nada por las dudas ......

how to recharged ?

WOW, CRAZY HAHA

🌞🌞🌞

po jakiemu to

Développement internet

aprende a furar

its bad