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What Have I Done?
nissan
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5,122 Posts
Discussion Starter #1
Hi all well educated in the electrical field members !!!

My question may be a dumb one,
but that wouldnt be the first or the last time for me sadly !! LOL

I just bought and recieved one of these
M/VOLT 91 LED FLOOD LAMP RUBBER BODY W/PROOF BL-181WM | eBay

and ive mounted it on my roof rack / rear facing ,
to be used in conjunction with my reverse lights...

My questions are

1. Can i hook such a low current light straight up to my reverse lights direct?
Ie, do i need a relay or any other gizmodo.


2. Can this one light be hooked up to the reverse lights AND
a switch that i already have spare, and use it as a work light when not in reverse gear mode ,..
as a WOrk light etc when the truck is turned off,
without the reverse lights being turned on aswell???.

Im really confused on how to or if its possible Question 2 that is.

Thanks heaps for any help recieved.
 

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The nutty professor
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8,299 Posts
i dont see why you couldnt hook it strait up to the reverse light, and if you use a on/off/on switch it can be configured to do what you want

normally the on/off/on switch has 3 pins and from top to bottom
pin no/
1/connect to the battery
2/to the light
3/to reverse light wiring


remember to use fuses
 

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What Have I Done?
nissan
Joined
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5,122 Posts
Discussion Starter #3
You is legend IAFNAF !!

So no relay needed...... didnt think so,
but my think isnt isnt what i think it used to think, if you think you know what i think. LOL

ps. if i connect the one wire to power, one to light, and one to reverse light,

when i switch on the light manually,
it shoulnt light up the reverse tailigh aswell , should it?
 

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The nutty professor
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8,299 Posts
nope

here is a diagram of the switch



with the switch in the middle position nothing is on
flick the switch down it will connect the light to the battery seperate from the reverse lights
flick the switch up and it connects to the reverse lights seperate from the battery

hope that helps
 

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Registered
Nissan
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1,865 Posts
it would still be advisable to use a relay, if ur going to the trouble of doing the switch u mayswell do a relay to.
IMO
 

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The nutty professor
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8,299 Posts
it would still be advisable to use a relay, if ur going to the trouble of doing the switch u mayswell do a relay to.
IMO
yeah but do you think a relay is needed for .48 of an amp, pretty sure the factory wiring will handle that, the relay might draw more power than the light itself
 

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Registered
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2,713 Posts
I would also use a fuse on the battery circuit.
 

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mechanical necromancer
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1,682 Posts
In a plus to what Glort said, make sure the fuse you add is near the point where you connect to the power, not the device being powered.
 

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Registered
Nissan
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No problem wireing it direct.
At less than half an amp it's pulling a lot less than the tail light itself which is almost 2 amps.
Undoubtedly the relay would put more draw on the circuit than the LED light .

ah yeah thats not correct. a standard mini relay will dar 150 milliamps :) (0.15A)
if u use a relay the benifite is u can relay the reverse lights as well so when in reverse all lights r brighter as ull be drawing close to 3 amps threw the crappy 2.5mm wire that is standard u WILL get voltage drop
u dont have to do it all i am saying is there is a benifit OF doing it.
if just the spot light comes on with the dash mounted override switch, sure no problems what so ever running it staright threw the switch.

not trying to be a smart ass
but i have the qualification to tell you what is the correct way of doing it.
but im not looking to argue just trying to help
:cheers:
 
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