ok so i have a pretty kick *** system that i wired myself so i have a basic understanding of it but i went out today and bought some leds to light up the inside floor of my car...problem is im not sure how to wire them i know that i don't want to tap into any existing power lines i just want to run it straight from my battery to a switch so i can turn them on and off but i went outside like a few mins ago to se how they would light off my battery and they didn't i touched the positive to positive and the negative to the frame for grounding and i got no light at all whats going on im confused?
2006-10-23 11:56:39 · 6 answers · asked by Anonymous in Cars & Transportation ➔ Car Audio
they do run off 12 volt DC its required
2006-10-23 12:05:56 · update #1
Ground them to the neg. battery terminal. You might have just a bad or dirty ground connection to the frame.
2006-10-23 12:00:08 · answer #1 · answered by R1volta 6 · 0⤊ 0⤋
I accually have done this before. i bought some leds from radio shack and the maximum voltage was like 3.3, i hooked them up and flicked it on well that was fun! sparks and smoke...the first thing to do is to check the voltage most all electricity going through the car is 12 volts. Yeah it would be simple to go directly off the battery, but the amperage may be to high for the lights. another simpler way to go about it is go off the ciggarett lighter. the middle is positive (+) and the outside is neutral (-). the amerage is a lot lower than coming off of the battery and as far as shorting something out. in the fuse box or the owners manual you can see what else is attached to it. on my car its just the lighter and the horn. so if the fuse were to go the car would still work except thoes 2 things.
2006-10-26 18:49:58 · answer #2 · answered by Kevin S 1 · 0⤊ 0⤋
Do they already have the current limiting resistors? If not, you will have to add them.
You can use this calculator to find the right resistor.
http://led.linear1.org/led.wiz
They are polarity sensitive and won't work wired backwards. The flat side of the LED is ground.
Does the frame where you touched it have paint?
2006-10-23 12:16:47 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Check the leads and be sure they are able to run off 12 V DC
2006-10-23 12:04:26 · answer #4 · answered by Anonymous · 0⤊ 0⤋
the excellent concern to do which includes your LEDs is to place them in Parallel and then upload a three volt power grant or the LEDs will blow as they have an extremely constrained voltage boundary. in case you place them in sequence the LEDs won't gentle considering you have blown them or there is no longer adequate power. appropriate is to place them in parallel. undergo in ideas, the longest leg is valuable. I as quickly as further 12v to a hundred LEDs and that they did no longer gentle in sequence i then placed them in parallel and blew the lot!!!
2016-11-25 01:01:49 · answer #5 · answered by Anonymous · 0⤊ 0⤋
you may have wire your lights to a fuse box. its possibile you may have to much power going into the lights than they can handle.
2006-10-26 02:32:04 · answer #6 · answered by Anonymous · 0⤊ 1⤋