Jerzyboi

All right so I've be lurking and researching for quite a while on this subject. Putting leds in tail lights has been something I've always wanted to do. I became very frustrated with the lack of examples so the time came where I got tired of fantasizing and went to work. Here is my progress so far on one tail light.


To do list:

Sand and Trim Acrylic Sheet that I have
Mock up how heatsinks will sit in the housing
Spacing of the acylic and mock up of how it fits
Connect Leds to their respective "bulb" connector for a plug-and-play fit
Mock up the red lense to get an idea of a final fit
Figure out the best way to attach the two pieces together

Goal:

To have a uniform look for running lights and to have the Brake function more exposed.

06/01/2017
Running Lights: x12 under powered at 150 mA on average
XPEBRD-L1-0000-00901-SB01
officially rated at 80 lm 350 mA each

Brake Lights: x2 under powered at 350 mA
LZ4-40R108-0000
officially rated at 440 lm @ 700 mA eac

A third might be added but i'd rather not.

The boards do get warm(emphasis on warm) at room tempearture in a non enclose area. This only occurs with the “brake” lights on(looking in to getting a thermal gun instead of strictly the touch test). When they are off, the board cool to the touch at room temperature. I”m afraid to attach another led for brake not only for heat reason but the massive amount of light might not be necessary. I will hold off on this once i’m able to enclose the leds in the tail light for a few hours to get an idea how hot things will get at an extreme( I doubt I will stay on the brakes for hours but it’s a good idea to stress test).




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Onyxthecat

sick looking forward to this

Jerzyboi

I hope the end result turns well as well. Here's an up date:

06/04/2017




Update:




So I sanded a piece of acrylic I ordered a while back. All though it becoming more translucent, It’s still doesn’t spread the light as intended. Another factor is I didn’t order the acrylic long enough(the height is almost perfect) si there will be a gap if I keep the current form. As an alternative I’m thinking of cuttingthe acrylic in two and putting each in front of the two heatsinks then use a diffuser film (https://www.inventables.com/technolo...mended=product or 0.010" x 24" x 48" Velvet/Matte Polycarbonate Sheet ) attached directly on the red lense.




It’s tricky taking a good picture with the running lights on and the brake lights on but I will do this to give a better idea of the brightness difference. Overall al there is a good difference between the two to keep drivers from being confused. So right now i’m mainly playing around with what I have to see if I do indeed need to buy one of the above diffuser films. UV resistance is a priority but the acrylic red lense should be good enough.









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