LED spot wiring.

retneprac · Dec 15, 2015

Intend to fit a pair of 18w LED spots.
Would it be best practise to still run them through a relay even at only 18w?

bankz5152 · Dec 15, 2015

No need. Ive got a 108w without one, LEDs have such a low draw.

Kwakerman · Dec 15, 2015

36 Watts is only about 3 amps, so no if you are using a 10 amp switch

retneprac · Dec 15, 2015

Any issue with piggy backing off the high beam feed?

TomLR · Dec 15, 2015

Not if you use a relay

terr · Dec 15, 2015

yous a relay less power loss

Kwakerman · Dec 15, 2015

If you are wiring it to the headlight main beam then you also need a switch to isolate it otherwise you will fail the MOT

retneprac · Dec 15, 2015

going for relay then, and a switch on the feed from the battery.

zeaphod · Dec 16, 2015

Even though there's not much current draw, a relay isolated circuit is best practice - it will protect the rest of the wiring should anything go wrong with the spots. It will also allow you to uprate the spots without changing the wiring later.

vilguy · Dec 16, 2015

+1

much better to put in the proper wiring, if you have a short circuit for some reason then at least its a seperate circuit. Better than losing your headlights in the middle of no where

LED spot wiring.

retneprac

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bankz5152

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Kwakerman

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retneprac

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TomLR

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terr

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Kwakerman

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retneprac

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zeaphod

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vilguy

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