wiring both pairs of rigid d2s

[justvettn]

So if a stereo manufacturer's instructions indicated to use a certain size fuse you would look up the watts do the math and suggest a lower fuse?

 

[Captain Awesome]

Ford also says not to Mod you'r truck.

 

[The Car Stereo Company]

if you noticed, i said "it appears to work." its a bit different since a stereo system varys in volume and power consuption at different levels. the lights are a constant and do not change. the only reason i would see that could be a problem is the turn on surge. that may be why they recommend a 15 amp fuse. i do not know what the turn on surge measures, but mathematically a 15 amp fuse wont blow with a 10amp load.

 

[Captain Awesome]

yes plus electronic manufactures always factor in a large safety margin.

 

[BigBOSS]

Just use a relay and play innie minnie miney moe to pick what aux switch to use.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

 

[BAJASVT]

I would run them on AUX 3 (15A) long before I ran them on AUX 1 or 2 (30A). Each D2 draws 2.5 amps, so 2.5 x 4 = 10 amps. To provide the most protection for the wiring and the electrical component, you want your fuse rating to be just above the total current draw from the device. In this case the four D2 lights are going to draw 10 amps, so a 15 amp fuse is the first available fuse size above 10 amps. If you connect these to AUX 1 or 2 that are rated at 30 amps, you could potentially send 30 amps to the lights; 30 amps is 3x their current rating, so it would almost certainly blow them up.

I have no idea why Rigid would recommend a 15 amp fuse for a pair of lights that are only going to draw 5 amps.

---------- Post added at 12:54 AM ---------- Previous post was at 12:51 AM ----------

yes plus electronic manufactures always factor in a large safety margin.

If the lights really do draw 2.5 amps each and they're recommending a 15 amp fuse for a pair, they're actually going in the opposite direction of a safety margin. In my opinion, a safety margin for two lights that draw 5 amps combined would be a 7.5 amp or maybe even a 5 amp fuse.