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Dirt Road Driver |
. Starting a new project I have been thinking about for a while. I was looking at the tantrem led lights. But at over a hundred dollars for the set, no.
Well, while looking for some parts to make my own led tail lights, I found the rock lights I have been looking for. They are 9 led lights (3 AAA). They come in a 2-pack for $3.88 at Pep Boys. With the housing cut down to 1/2" and an inch in diameter, they can be mounted almost anywhere. I can mount 14 for less than $30  I'm thinking I can use a cigarette adapter with the right voltage. Does anybody have any insight on this type of thing? Things to do or not to do?   |
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Ultimate N4Wheeler |
Running 3 of those lights in series( not parallel) ought to get you the right V-drop per light if your charging system is good.
it's 4.5 volts per light X3 lights- that's 13.5 volts . Are they bright? ..................... "Climate change is no longer science. It's politics... Climate change is also about power. Power to control.... It's about who gets to decide: how much energy we will have... where that energy will come from... what it will cost... It's about simulations, scenarios and monsters conjured up by computer models that should never be used to chart government policy -- especially on matters that will profoundly affect our livelihoods, living standards, life spans and dreams of a better future. "So hold onto your wallets, and hope you can hold onto your homes, cars and jobs. You're about to be put on a wild political roller coaster." - Paul Driessen, TownHall.com ( the lies of global warming)> http://www.youtube.com/watch?v=-zeGY8zbzc8 |
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Wheeler |
INSIGHT;this is how I would do it. (did it for a coustom dash leds)
google "LED Resitor Calculator" you should get several calculators that tell you what resitor to put on the + side b4 the LED to run off car battery (call it 13.5v to be safe). since each light uses 3 AAA in series (1.5v x 3= 4.5) just put 4.5 in as your LED voltage and 13.5 as your input voltage and 20mA for current. Use the rated resitor on b4 each ligth on the + side and wire them all in parallel so if 1 gets bonked the others still work. make sure the last ring on the resitor you buy is gold (%5 tolerance) for most accurate/relyable results =================================== mostly stock(for now) '89 Pathfinder XE over 212k and running good! Python Performance Injectors, HEI coil Thorley Headders & Magnaflow High Flow Cat w/ 2" turn down in rear wheelwell. HB Manual Locking hubs |
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Ultimate N4Wheeler |
That's a much better idea , My1
 ..................... "Climate change is no longer science. It's politics... Climate change is also about power. Power to control.... It's about who gets to decide: how much energy we will have... where that energy will come from... what it will cost... It's about simulations, scenarios and monsters conjured up by computer models that should never be used to chart government policy -- especially on matters that will profoundly affect our livelihoods, living standards, life spans and dreams of a better future. "So hold onto your wallets, and hope you can hold onto your homes, cars and jobs. You're about to be put on a wild political roller coaster." - Paul Driessen, TownHall.com ( the lies of global warming)> http://www.youtube.com/watch?v=-zeGY8zbzc8 |
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Dirt Road Driver |
Hillbille- yes, they are bright (for $2
)My1path- thanks for the tip on the calculator, I found some good info there.     |
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Off-Road Warrior |
I have 6 1-watt LED's under my truck. They work pretty good but I paid $20 each for them. I was thinking of upgrading to something brighter, for about the same cost.
I was thinking about using 4 of these: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93944 at $20 each, they already come in a nice durable case and are set up for 12 volts. Brent 1972 K5 Blazer  |
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Dirt Road Driver |
I think I like your idea better
 . Thanks Brent. I have already fryed 6 lights because of the wrong resistor. Ouch, I'm out $12. |
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Wheeler |
sorry man, I guess the calculator is differant for multi led setups. =================================== mostly stock(for now) '89 Pathfinder XE over 212k and running good! Python Performance Injectors, HEI coil Thorley Headders & Magnaflow High Flow Cat w/ 2" turn down in rear wheelwell. HB Manual Locking hubs |
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Off-Road Warrior |
I keep one of them in my toolbox, they work great and come with a long cord. Great for night time breaks.
Brent 1972 K5 Blazer |
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