Do i need a relay?
#1
#4
#6
#9
ALWAYS run a relay & fuse at the battery.
If something shorts out or overheats, you'll be better protected than running straight to the power source.
A couple bucks for a relay & fuse holder could save your truck from burning up.
It's ok to run larger wire than the lights came with, AS LONG AS they are properly fused & controlled by a relay. If not, you're asking for trouble.
I even run a fuse on the wire running through the firewall that turns on the relay under the hood. The worst thing that can happen is if something shorts out, I blow a $0.10 fuse.
If something shorts out or overheats, you'll be better protected than running straight to the power source.
A couple bucks for a relay & fuse holder could save your truck from burning up.
It's ok to run larger wire than the lights came with, AS LONG AS they are properly fused & controlled by a relay. If not, you're asking for trouble.
I even run a fuse on the wire running through the firewall that turns on the relay under the hood. The worst thing that can happen is if something shorts out, I blow a $0.10 fuse.
#11
Old Guy User…
iTrader: (12)
A relay is intended for the purpose of keeping high current out of the cab.
If you guys that don’t use a relay get a short in the main power wire and the fuse doesn’t blow then you WILL have a fire.
Relays are an easy do, so there is no excuse, just do it !
It does take a little extra 18 ga wire and an extra fuse on the switch power wire but it is a good thing to have.
Also always use a fuse on the main power wire going to pin 30 on the relay AND keep the fuse close to the battery.
Size your fuse for the smallest component in the circuit.
This is the diagram I use for basic aux lighting, it works.
If you guys that don’t use a relay get a short in the main power wire and the fuse doesn’t blow then you WILL have a fire.
Relays are an easy do, so there is no excuse, just do it !
It does take a little extra 18 ga wire and an extra fuse on the switch power wire but it is a good thing to have.
Also always use a fuse on the main power wire going to pin 30 on the relay AND keep the fuse close to the battery.
Size your fuse for the smallest component in the circuit.
This is the diagram I use for basic aux lighting, it works.
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