Relays required for LED installation
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=54142
Printed Date: April 29, 2024 at 11:21 AM
Topic: Relays required for LED installation
Posted By: vseth
Subject: Relays required for LED installation
Date Posted: April 18, 2005 at 9:11 AM
Installing about 4 LEDs in my car, and want to control them with a switch. So, do I need any diodes ( don't believe need to isolate anything ) or relays for this installation, or is it ok to just zap the power directly from a 12v source ( such as the 12V constant in the ignition harness ). If a relay is required, a schematic for connecting relays, with the LED's in parallel, would be appreciated.
Replies:
Posted By: cruelneo
Date Posted: April 18, 2005 at 9:43 AM
the leds are they rated for 12volt if not u will need restiors and to ans. your question u can just tap 12 volts u dont need a relay
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850 volvo
10-8" kicker freeair on
old punch 250 p.c.
3 sets of 6.5" 4" 1" mbquarts
bi-amped on 3 alpine mrv-f340
2-jl 6" subs in doorpannel
on old punch 40ix
and running it all
kenwood kdc-x87
Posted By: vseth
Date Posted: May 10, 2005 at 1:31 AM
So in my basic 4 LED circuit, should I have a fuse. If so, how would I calculate what fuse that I need.
Posted By: ff-mike
Date Posted: May 10, 2005 at 9:50 AM
1 amp should be fine. LEDs use very little current, approximately 30mA on most of them. 4 of them are still using less than 1/8 of an amp.
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