scotslad Posted September 22, 2016 Report Share Posted September 22, 2016 Alright I'm going to wire some LED worklights/driving lights on to my dumper for working later on on these dark nights. When i was a daft boy i put some spot lights on my first couple of motors but this was before LEDs and possibly even halogen so would be drawing a lot of current. With these Led lights which draw very little current do u have to put a relay in or at wot power draw do u need a relay. Also thinking of putting some reversing lights on my trailer, have tried it in past with a 5w buld light but never been that successful, would it need a relay too? Had a 2nd cable/plug coming of the reverse light in van/pick up for power/live feed, in past i've thought not enough juice getting to trailer light so hoping the LED system should work better Cheers Quote Link to comment Share on other sites More sharing options...
subsonicnat Posted September 22, 2016 Report Share Posted September 22, 2016 The Relay just switches to another Thicker cable handling more Currant,,Low input,,But Greater output. 9 Quote Link to comment Share on other sites More sharing options...
sishyplops Posted September 23, 2016 Report Share Posted September 23, 2016 (edited) relay to switch on but you may also need a resistor as they require less current, (this is why you see many motorbikes with diddy indicators that flash too fast) Edited September 23, 2016 by sishyplops Quote Link to comment Share on other sites More sharing options...
silver pigeon69 Posted September 23, 2016 Report Share Posted September 23, 2016 I think you will only need a relay, basically when the on/off switch your useing and wireing to it won't handle the load pasing through it. It all depends on the current and Wattage of lights, the thickness of the wire and capacity of the switch. i would imagine a 5w LED would be fine without a relay.Connect them up without a relay, but with an inline fuse, leave on for 10 mins, every minute or so see if the wires going to, coming from switch, or the switch itself gets warm/hot. Quote Link to comment Share on other sites More sharing options...
bornfree Posted September 24, 2016 Report Share Posted September 24, 2016 No need I use 10w led worklights and they only pull 0.34 of an amp. Quote Link to comment Share on other sites More sharing options...
scotslad Posted September 25, 2016 Author Report Share Posted September 25, 2016 These are 18W work lights but i can't find anything i the packaging that says wot ampage they draw. Only thinking 2 lights on easch circuit, 2 driving 2 for working on roll bar and 1 behind for reversing on 3 seperate switches Meaning to put some up in my dog kennel too just with an inline fuse as n power ran out to it yet Quote Link to comment Share on other sites More sharing options...
wascal Posted September 25, 2016 Report Share Posted September 25, 2016 These are 18W work lights but i can't find anything i the packaging that says wot ampage they draw. depends what voltage you are supplying 12V would be 1.5A 24V would be 0.75A Quote Link to comment Share on other sites More sharing options...
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