Light help please!

[mexican]

Just installed the auxilary lights from walmart, pair of 50 watt 2" round lights, work exelent, installed an inline 5 amp fuse, after 5 minutes it blew the fuse, caording to my experirnce with electricity, i should be pulling 1.1 amps with 100 watts, that would be if i was using houshold 100 volts.
Is it different with 12 volts? If it is what is the correct formula so i can size the fuse correctly?
Thanks,
Lupe

 

[captain jack]

Same formulae Mex. 100watts at 12 volts - current = watts/volts =
100/12 = 8.3 amps. Your 5amp fuse aint big enough, try a 10amp fuse. Make sure your wiring will take it. Check my maths also!!!

 

[mexican]

Same formulae Mex. 100watts at 12 volts - current = watts/volts =
100/12 = 8.3 amps. Your 5amp fuse aint big enough, try a 10amp fuse. Make sure your wiring will take it. Check my maths also!!!

Thanks Cptn Jack, thats what i did, i installed a 10 amp fuse, the wire that comes with the lights is way too thin, i hope it handles it, these things are very bright, and get hot, havn't have a chance to run them yet with the new fuse, hope i don't fry my rocket
What can i expect for $18 dollars

 

[wingandaprayer]

did you use a relay? My aux lights with 55 w bulbs needed to go with 15 amp fuse and I did use a relay and 14 g wire all around.
hope this helps.

 

[rainman]

when i added my fog lights from my classic to my r3t i just added a 10 amp fuse ran it directly to battery no relay have had them on there for 2 years and no problem

 

[rainman]

Just installed the auxilary lights from walmart, pair of 50 watt 2" round lights, work exelent, installed an inline 5 amp fuse, after 5 minutes it blew the fuse, caording to my experirnce with electricity, i should be pulling 1.1 amps with 100 watts, that would be if i was using houshold 100 volts.
Is it different with 12 volts? If it is what is the correct formula so i can size the fuse correctly?
Thanks,
Lupe

u eed to turn your lights out they r blinding me

 

[mexican]

No, no relay, i connected them directly to the battery, the wire is too thin but it comes out of the light assembly so no replacing it,
What is the advantage of using a relay?
Rainman, the lights are for when i ride with you, rain, fog, you know

 

[rainman]

u got a 10 amp fuse u should have no worrys

 

[captain jack]

No, no relay, i connected them directly to the battery, the wire is too thin but it comes out of the light assembly so no replacing it,
What is the advantage of using a relay?
Rainman, the lights are for when i ride with you, rain, fog, you know

Hi Mex, glad you got sorted. A relay by the way simply allows you to use high current devices (e.g. lights), without all that current going through your low current rated switch. The switch uses a low current & a lightweight cable to energise a relay which makes/breaks contacts which are capable of carrying the high current needed to power your lights. It is a better alternative but if all your wiring is safe to carry the current & the fuse is the correct rating you should be ok, but make sure that cable is heavy enough or you have made your own electric fire -not a good thing & ensure the switch is capable of the current used or you will weld the switch contacts together (lights on all the time then).If the wire was supplied with the lights it should be ok but what switch are you using ? Nice lights BTW, now I know how mine looks.

 

[tdragger]

Hi Mex, glad you got sorted. A relay by the way simply allows you to use high current devices (e.g. lights), without all that current going through your low current rated switch. The switch uses a low current & a lightweight cable to energise a relay which makes/breaks contacts which are capable of carrying the high current needed to power your lights. It is a better alternative but if all your wiring is safe to carry the current & the fuse is the correct rating you should be ok, but make sure that cable is heavy enough or you have made your own electric fire -not a good thing & ensure the switch is capable of the current used or you will weld the switch contacts together (lights on all the time then).If the wire was supplied with the lights it should be ok but what switch are you using ? Nice lights BTW, now I know how mine looks.

This particular kit from Wallymart isn't connected to any other circuits so no need for a relay. It also comes with it's own switch and fuse link. The fuse that came in my kit was a 10 amp. I'm curious if yours came with the 5 amp.

btw, where did you end up mounting the switch? Mine is installed in the right-side neck cover.