Member Since: 06 Nov 2006
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Another LF/Spots wiring question
I've been searching through the thousands of threads to wire my LF170's in, but I don't have answers to these questions....
How can I wire so my switch can be on/off with the main beam (I know that bit) but then I also want the switch to be able to JUST have the spots on. i.e if the engine/lights are off (keys removed) but I want spots on (Spots would be powered from my Aux Battery)
Is it an on- off - on switch I should be looking at with two seperately wired relays?
I did see a post the other day with something (I think) that would be similar but I'm if I can find it again now...
Additionally, I've been trying to find what wire to use for the main power/earth, seems I might need 25amp capacity? 2x100w?
So this http://www.maplin.co.uk/Module.aspx?Module...p;doy=15m1 or is that overkill and I can drop a size?
The wiring to the switch and relay, what's the thinnest I can use (as I assume it has relatively low current draw?
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15th Jan 2009 1:04 pm
Bodsy Site Sponsor
Member Since: 06 Nov 2006
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OK, so managed to get the formula, for my 2x100w lamps /12v - 16.6amps, so I can drop a wire size and go for the 20amp cable. the high power run shouldn't be too long as the relay shoudl trigger it on.
Still need to work out how I can have on/off with main beam as well as on directly and independantly.....Bodsys Brake Bible
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15th Jan 2009 1:22 pm
DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
Bodsy,
my roof light are wired so they come on only when ignition is on. I have a 3 way switch so they can 1) come on with main beam 2) come on on there own (providing side lights are on) or 3) switched off completely.
I cant explain how its done but you can take a look when we go to snowdonia Duncan
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15th Jan 2009 1:29 pm
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Do we answer in this thread or the other lightforce thread with the same question ? 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
15th Jan 2009 1:32 pm
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I thought I'd seperate this out so as not to confuse with the mount issue....... Bodsys Brake Bible
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15th Jan 2009 1:41 pm
DiscoStu
Member Since: 09 Apr 2006
Location: London
Posts: 11412
2 seperate relays, one to be switched with main beam when your 1st switch is on, and one powered solely from the second battery when you flick the 2nd switch. As Dunc says, a 3 position switch would be best. Off in centre, up for with high beam, down for aux batt.Disco 5 HSE Lux
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15th Jan 2009 1:44 pm
DiscoStu
Member Since: 09 Apr 2006
Location: London
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Member Since: 20 Jun 2008
Location: Lancs
Posts: 753
Bodsy
ON - OFF - ON switch required and one relay can't work out how to post the diagram on here if you want it pm me your e-mail address"Never keep up with the Joneses. Drag'em down to your level. It's cheaper".
Bodsy
You only need 1 relay as long as you intend to have them powered from the aux battery only. You just need to run permanent (ie not switched by IGN) 12v through a dash switch and to the coil of the relay - to the same terminal that the main beam power is wired to. It will need a diode to isolate the vehicle main beam circuit when you just want the LFs on without the ignition.
Last edited by ridgeback_moor on 15th Jan 2009 2:14 pm. Edited 3 times in total
15th Jan 2009 1:52 pm
Wex
Member Since: 16 Apr 2007
Location: Knackeragua
Posts: 5173
UNG , wouldn't mind having that diagram aswell plese if you could.I've PM'd my address.I'll post it up for you if you like and email it back as a PDF you can put in your gallery.
15th Jan 2009 1:55 pm
DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
hi ian, pop over on the saturday if you like. we should be at my parents around lunch time
I have an ON-OFF-ON switch and two relays. I think one for the ignition and the other for the side light / main beam setup but as i didnt wire it up i'm not totally sure. its easy to trace the wires though.Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide
15th Jan 2009 1:55 pm
UNG
Member Since: 20 Jun 2008
Location: Lancs
Posts: 753
Discowex wrote:
UNG , wouldn't mind having that diagram aswell plese if you could.I've PM'd my address.I'll post it up for you if you like and email it back as a PDF you can put in your gallery.
E-mail sent "Never keep up with the Joneses. Drag'em down to your level. It's cheaper".
15th Jan 2009 2:24 pm
Bodsy Site Sponsor
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Thanks RBM, would the 3a be sufficient as it's only switching the relay or I should get one of the higher rated ones?
Dunc I'll give you a call on the Saturday to arrange.
UNG
DiscoStu
I'm looking at all the possible ways to wire it up, so the more options, the merrier Bodsys Brake Bible
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if I can find it again now...
