H11 LED Headlight bulb disassembled - Pictures

[1 SX]

For the curiosity in us (me) I decided to disassemble a half dim H11 LED bulb to see what makes it... Light!. There is not too much going on inside of these LED bulbs. looks like a couple controllers, and 3 micro LEDs per side of the bulb for 6 micro LEDS total per bulb. The aluminum casing has a couple "heat sinks" attached for cooling of the motherboard... 3 "special" triangle shaped screws hold the case together.

 

[1 SX]

 

[Slick3914]

Very cool, thank you for doing that!

 

[joekingcorvette]

I cannot believe how inexpensive those are compared to how complicated they can be.

 

[74DartSport]

Big Clive should do one of these.

 

[92saturnsl2]

I took apart an LED fog light bulb awhile back whose diodes had failed.

Looked a lot like yours, surprisingly well made. Had a seal to keep out water, the usual circuit board with lots of copper and thermal paste inside to conduct heat to the pot metal / aluminum chassis. If only the important part (LEDs) were worth a hoot.

 

[Brad_C]

So a bridge rectifier and a small constant current buck converter. Pretty conventional and maybe a couple of dollars worth of bits.

I concur it's a shame they don't spend an extra buck on quality leds. I guess for every one that doesn't wind up in landfill they lose profit on a sale, so it's better for them to have them last just long enough to make the buyer want another.

Edit : Nice pictures, thanks!