Member Since: 06 Nov 2006
Location: In the Clubhouse
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On Off On set-up with one relay (by UNG)
Click image to enlarge
I can see how this would work, without the need for a diode as it wouldn't cross connect.
Live feed to the spotlights (switched through the relay) would be fused 25A from the Aux Battery. Another live feed off of that would go to On1 of the on off on switch. This will give me independant illumination with or without ign on.
Then the live wire from the main beam wire would go to On2 of the on off on switch. This will then give me additional illumination with main beam lights. This would also work independant from the ignition (I assume the main beam works even if ign is switched off i.e. if you flash someone).
Then if I don't want it on at all, it is just left to the off position.
No danger of running main battery down as it will all be powered from Aux.
Excellent, thank you chaps, I think I have it clear in my head now.
Just need to mount them, but I've been looking at the way ChrisTyler did his in the grill. Just need to measure up the 170's and get hold of a 2nd hand grill to try it with Bodsys Brake Bible
Yes, that's a neater solution and it gives you the legal requirement to be able to turn them off Previously:
2005 D3 2.7 TDV6 S
1984 90 2.25 Petrol CSW
1992 90 200TDi Hard Top
1995 Discovery ES 300TDi
2003 90 TD5 Truck Cab
15th Jan 2009 3:15 pm
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
Thanks to Tanters, I'll have hold of another grill to play with soon.
Just need Christylers measurements for the mounting plate he made for his lights...
I've been desperately searching and can't seem to find the post he did when he installed his lights. have the pics in his gallery, but not the extra info I remember he provided (or maybe that was when I spoke to him..) Oh well, he'll be in Snowdon too so i'm sure I can take a peek
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15th Jan 2009 3:38 pm
Wex
Member Since: 16 Apr 2007
Location: Knackeragua
Posts: 5173
Quote:
Live feed to the spotlights (switched through the relay) would be fused 25A from the Aux Battery. Another live feed off of that would go to On1 of the on off on switch. This will give me independant illumination with or without ign on.
Then the live wire from the main beam wire would go to On2 of the on off on switch. This will then give me additional illumination with main beam lights. This would also work independant from the ignition (I assume the main beam works even if ign is switched off i.e. if you flash someone).
Then if I don't want it on at all, it is just left to the off position.
No danger of running main battery down as it will all be powered from Aux.
Bods , can you make up a diagram of that
15th Jan 2009 3:57 pm
UNG
Member Since: 20 Jun 2008
Location: Lancs
Posts: 753
Discowex wrote:
Bods , can you make up a diagram of that
You only need to separate the feed to the relay contact and the switch in my diagram to achieve what Bodsy is doing"Never keep up with the Joneses. Drag'em down to your level. It's cheaper".
15th Jan 2009 4:51 pm
Wex
Member Since: 16 Apr 2007
Location: Knackeragua
Posts: 5173
15th Jan 2009 4:55 pm
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It's a bit of a bodge, but you mean something like this.....?
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15th Jan 2009 5:10 pm
Wex
Member Since: 16 Apr 2007
Location: Knackeragua
Posts: 5173
Well Im definitely not
Cheers Bods & UNG
15th Jan 2009 5:16 pm
DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
it is worth considering a feed from the ignition. Simply to prevent the LFs draining the aux batt.
Mine all run off the main battery (simply because they were fitted before i had the aux batt installed) and if i turn the ignition on without running the engine, then turn on all lights.... the battery is incapable of starting the engine after about 30 seconds
I know yours will run from the Aux batt but worth a thought if only to ensure the aux batt does go flat and then your fridge will warm up the beer... and you wouldnt want that Duncan
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15th Jan 2009 5:42 pm
TallPaul
Member Since: 03 Jan 2008
Location: Near Reading
Posts: 1214
If you use an ignition feed, I would run ignition to relay, then use relay to connect +12 from aux to switch or lights as you choose.
If you just take ignition feed and start using it on relays... it should be ok... but if you get it wrong you can end up powering ignition backwards through your wiring, which is NOT what you want
(don't ask how I know, its a long time ago and I forget the details but I remember that its important )
15th Jan 2009 5:47 pm
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I had considered that Duncan, and for my application, I'd generally be happy that if the power gets low, then I'd have the main battery to start the car with.
It would take about 3 hours for 200w to drain the Aux battery (roughly) I reckon.
Would only really need it for Scout nights in a field & other times I might need light but not keep runing the engine.
All other times it would be off or only on with the main beam, so minimal drain.
If I didn't have the Aux, then yes, I would definately link it to the Ign on signal (via relay) Bodsys Brake Bible
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15th Jan 2009 5:58 pm
phurley
Member Since: 19 Aug 2007
Location: So. NH
Posts: 175
TallPaul wrote:
If you use an ignition feed, I would run ignition to relay, then use relay to connect +12 from aux to switch or lights as you choose.
Better yet, just use a relay with integrated diode across the coil to protect from voltage spikes and current reversals into the vehicle systems.
Last edited by phurley on 15th Jan 2009 6:08 pm. Edited 1 time in total
15th Jan 2009 6:06 pm
DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
Quote:
If you use an ignition feed, I would run ignition to relay, then use relay to connect +12 from aux to switch or lights as you choose.
Duncan
-----------------------------------------------------
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 6:08 pm
UNG
Member Since: 20 Jun 2008
Location: Lancs
Posts: 753
Problem with using an ign supply it means that the key needs to be in the ign to use the lights therefore if you are not sat in the vehicle some scumbag oppertunist might relieve you of your pride and joy and the insurance company walks away and leaves you with the problem"Never keep up with the Joneses. Drag'em down to your level. It's cheaper".
15th Jan 2009 6:14 pm
TallPaul
Member Since: 03 Jan 2008
Location: Near Reading
Posts: 1214
phurley wrote:
Better yet, just use a relay with integrated diode across the coil to protect from voltage spikes and current reversals into the vehicle systems.
Also, what he said.
You can buy relays with the diode in them these days, I just soldered one from Maplin on myself, although I could not tell you what it was off the top of my head.
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