Luxeon Dome/Map Light Upgrade ...

wquiles

wquiles

Flashaholic
Joined
Jan 10, 2005
Messages
8,459
Location
Texas, USA, Earth
red_robby said:
I agree with you, if you're going to drive the lux at 700mA or higher then you would want to make sure you take care of the heat somehow, I dont need that much light from my dome, my lux is getting somewhere between 300mA-400mA
and it's plenty bright, better then stock (i wanted the lux for the color mostly, i like white better then yellow), the Nflex is a very nice driver and mod a mag did a nice job, but for my needs the $1 resistor worked pretty well.
Well said. If done right, as you have, there is nothing wrong with a simple resistor :)

This DeWalt 18V LED modification was completed on July of last year and it works awesome. Because of being LONG running and becuase of having a flexible neck, it is my most used work/project light. And yes, it is simply using resistors ;)

Will
 
A

Alexis

Newly Enlightened
Joined
Mar 9, 2001
Messages
107
stock bulbs are already 10watts

wasBlinded said:
You could use a resistor, but the resistor itself will be dissipating 6 watts if you are driving the LED at 3 watts. Thats 9 watts of heat to get rid of inside a plastic enclosed dome light space - be careful!
 
W

wasBlinded

Flashlight Enthusiast
Joined
Dec 14, 2004
Messages
1,222
Location
Oklahoma
Alexis said:
stock bulbs are already 10watts

Thats a good point. But a lot of that energy is emitted directly as infrared - out the 'lens' and more evenly throughout the compartment. The care one takes will be directed toward placing that 6 watt dissipating resistor somewhere that it won't contact and melt plastic housing or wire insulation.
 

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