piey62 Posted November 14, 2010 Share Posted November 14, 2010 Hi anyone have a wiring diagram or know how to wire light bar disco1 4 lamps 55 watt Thanx Ian Quote Link to comment Share on other sites More sharing options...
Phil B Posted November 14, 2010 Share Posted November 14, 2010 Get a length of 2core wire a 30a relay ( same as what come with horn Kits n stuff) take a main beam feed to the relay to switch on/off a power feed to relay, the out power wire up to the lightbar the wire in series, earth wire off relay to chassis/earthpoint earth wire off lights onto lightbar mounting bolt if your lights Have sidelights just run a feed up to the lightbar off current sidelight circuit simple way of explaining it prob not enough physical info tho Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted November 14, 2010 Share Posted November 14, 2010 Erm, lights are wired in PARALLEL, not series, otherwise you drop voltage across each lamp. If you have 4 lights, 2 core wire is fine, and a 30A relay is fine too, both assuming you are only running 55W bulbs. If running 100W bulbs then you need to duplicate the circuit, and only run a pair off each circuit. Earth everything to the battery, a much more secure way of doing things. For a wiring diagram, you should have used the search function, I found it within 30 secs: http://forums.lr4x4.com/index.php?app=core&module=attach§ion=attach&attach_rel_module=post&attach_id=27169 All credit to Western, I believe. Quote Link to comment Share on other sites More sharing options...
tort172 Posted November 14, 2010 Share Posted November 14, 2010 if your disco had front fogs fitted just extend the wires from them with suitable single core cable as the light bar will be a good earth source worked fine on mine for last 3 years and you have all power and switches in place Quote Link to comment Share on other sites More sharing options...
Phil B Posted November 16, 2010 Share Posted November 16, 2010 My bad on series/parallel it been a while since I did gcse physics lol Also how I described a signal relay trigger off your headlights so they come on then you can also install a 'three way switch' which basically is a fused wire from your battery to a normal (correct ampage) switch then run the wire back to your relay signal wire so you can use them as spotlights instead of main beam without even having to switch your headlights on perfect if your wading in the dark or just want to go trekking Quote Link to comment Share on other sites More sharing options...
Range Rover Blues Posted November 16, 2010 Share Posted November 16, 2010 Some caravan shops sell a 5 core trailer cable rather than 7 core, it's fitted to modern caravans on the 12S socket. Each cable on the 12S should be rated at between 10 and 16 amps. If you want to the lamps to come on either-or, say via a switch as worklights or with the main beam then you need to use 2 relays or a diode. I have my fogs come on via a switch from the sidelights or with the main beam Aux lights by using a diode in the feed form the aux lights. I also used one micro relay for each lamp, I keep them in a watertight box which unfortunatley prevents them cooling so I have to reduce their switching capacity. Quote Link to comment Share on other sites More sharing options...
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