My Tractor Forum banner
Cancel

Fuse sizes for lights

9399 Views 15 Replies 5 Participants Last post by  donimbimbo, 
TexasFire
There may be a more suitable forum for this question but it has to do with lights on a '68 Ford 2000. I have bought a pair of 55 watt headlights & a 35 watt rear work light. I have 20A capable switches for both. My question is what is the appropriate size fuse for each of these loads?

TexasFire :thanku:
Reply
Save
Like
1 - 6 of 16 Posts
TexasFire
I'm feeling kinda lazy so I'll probably skip the light relays. My ignition switch DOES have an aux tab I could power them from. Using the formula you provided I plan to use a 5 amp fuse on the work light & a 10 amp fuse on the headlights. I will wire to the battery, both of my switches are lighted switches so I'll have an extra reminder that a switch is on, but don't expect I'll be accidentally leaving them on. The local parts house has aux light relays for $6 so it wouldn't cost much to add them. Maybe somewhere down the road.... I plan to use 16 gauge primary wire to the red / hot wire on each light & ground the black wire. Looking forward to having lights!!!!

TexasFire

:thanku:
Reply
Save
Like
TexasFire
Sorry, I stated that wrong, I would power the light relay (if I choose to run one) from the aux tab on the switch. I have no idea what its rated for, but its a brand new aftermarket switch that I picked up from Steiners that has an on - start - aux position.

TexasFire
Reply
Save
Like
TexasFire
OK, this probably sounds silly but I'm wondering what is the best way to run the wire from my work light on the rear fender to the steering cowling where my switch is. There's no body channel & I need to steer clear of the exhaust. Should I use those self-stick wire holders & just run it down the side of the transmission? There's an old wire pigtail hanging out of the old tail light fixture (light long gone) but no sign of how it was attached...

TexasFire
Reply
Save
Like
TexasFire
Thanks Don, someone else told me about the tubing thing too.... May need to go look at some examples to see how they were attached....

TexasFire
Reply
Save
Like
TexasFire
2
OK.... Back again, I think I have this right but wanted some extra opinions! As I have posted I am installing 12 VDC headlights & I plan to used a lighted 30A switch. Obviously the switch needs a ground (it has a plastic case) so the light can come on when the switch is closed. The only wiring diagram is very small on the back of the switch. There are two opposing tabs on top & bottom of the switch & then a center tab that sticks up higher than the other 2. If I am interpreting this correctly, the 12V+ power comes in on the bottom tab, the ground is on the opposing tab & the load, or 12V+ that goes to the light hot wire when the switch is closed or "on" comes from the middle. I will probably do a test wire prior to installation before I commit to rigging it all up. Thanks for any input!

TexasFire

Attachments

See less See more
Reply
Save
Like
1 - 6 of 16 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
My Tractor Forum
A family friendly forum community dedicated to all Tractor owners and enthusiasts. Come join the discussion about specifications, modifications, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
John Deere Forum Craftsman/Sears Forum Backyard Round Table: L & G Tractor Related Topics Introductions Walk Behind Mowers
Top