Electrical Knowledge For Offer For Custom Projects !

[EA2BA]

Originally Posted by XR6-VCT-2000

Oh and looking into the lights subject futher more , looks like wiring your spotlights to the existing wiring of other lights is gonna draw to much amps with 2 sets of lights going off the setup thats in the AU , pretty much 100% chance of blowing fuses (could use higher rating fuses to allow for higher amp drawage) but then also a good chance of frying something else. So the way you originally planned to wire the spotlights to parkers sounds like the safest bet too , just need to know how many amps is in the + and - wires that run to your spotlights ;) , then i can tell you how to reduce it to 25watt total at the lights.

I will measure the amp draw today, but what I currently have is a relay that is tripped by the high beam + wire, and the spotlights draw the current required direct from the battery (Have done this in all my cars never blown a fuse). The globes in my spotlights are standard 100w H3 globes if that helps.

I have though about dual h4 globes or something, but the amount of modification would be to much.

[XR6-VCT-2000]

Ok , i checked those 100w H3 and they are rated at 4.5amps p/h , u gonna find prolly the easiest way for u to get a setting u like / brightness wise / would to be - to put a heavy duty POT (rated at 5 amp minimum , higher is ok - any lower and u'll burn the pot out ) inbetween the + wire going from the battery to the spotlights ( make a break between the 2 on the + wire ) , I would use a 1 meg pot (1000 ohm) as ur gonna find with that pot at least ull get about 3/4 use out of the pot adjusting light settings ( around 770 ohm the spotlights will be runing about 1watt/not visible - any higher will turn them off to pretty much, but the higher u set the pot and (increase the ohms resistance ) which decreases the beam , u also put more heat onto the pot , so get at least a 10amp pot if u wanna run them around 5 watt brightness ( really dark light ). different thickness wires , slight voltage difference in batterys etc etc cal all effect your light output ( use a heavy duty wire for the 100w spotlights so no wiring gets hot and the lights will allways be able to get their full amp and voltage rating /providing enuff power to run all ya stuff/goodies!) . that said is why i say u better using a pot to test , get it to a brightness u like , measure the pot readings with a multimeter, then replace it with at least a 5% tolerance heavy duty large ceramic resistor of the ohms u measured. gl . note ... i take no responsibilities for injuries or damages , all at ur own risk ........ that said , allthough your pretty safe with this kinda stuff ;)

[XR6-VCT-2000]

oh , keep the pot and/or the ceramic resistors away from other plastic stuff or other heat sensitive electrical stuff etc etc , they can get quiet warm !

[XR6-VCT-2000]

I have added this diagram with resistor values for light setups on cars to run them at whatever watts you wish.