40" and 30" light bar on switch #1?

[NickPic83]

Has anyone ran a 40" and 30" dual row light bars togethrt on upfitter #1 without changing the fuse size and having any issues?

I'm putting a 40" on my new bumper and a 30" behind the grille above the ford logo and I wasn't sure if it would work out. I added up the watts and did the math and its just over 30 amps but I am pretty sure I have heard of people doing it without issues. I just dont want to blow fuses or burn something up.

Sent from my XT1080 using Tapatalk

 

[hosseface]

I dont think it would be a problem, however, worst case should be a blown fuse.

 

[Biggest]

I run 2 vision 40's on the same switch

 

[BigBOSS]

Use a relay if you're worried.

 

[The Car Stereo Company]

sorry. i forgot to mention that earlier. you shouldnt have a problem running both the lights on the 30amp switch.

 

[NickPic83]

thanks guys, i thought so but after doing the math i needed some reassurance.

 

[Nick@Apollo-Optics]

Someone explain to me how this is possible: if a 40" light is 3 watts per light with 80 lights that's 240w/12v= 20amps. A 30" light is 60 lights at 3w so that's 180w/12v= 15amps. That's 35amps and Aux 1 is only rated for 30 amps. How is this possible?

 

[The Car Stereo Company]

depends on which lights you are using.

---------- Post added at 07:12 AM ---------- Previous post was at 07:11 AM ----------

and also divide it by 14.4

 

[BigBOSS]

depends on which lights you are using.

---------- Post added at 07:12 AM ---------- Previous post was at 07:11 AM ----------

and also divide it by 14.4

Yup between 13.8 and 14.4 is normal

Sent from my SAMSUNG-SGH-I337 using Tapatalk

 

[Nick@Apollo-Optics]

Why 14.4? I thought (since we are dealing with DC power) that the equation is watts/volts = amps. So why use 14.4 instead of 12?