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#1
75/50W SEALED BEAM HEADLIGHTS
datsgold
Posted on: 2019/6/18 9:59
Hey guys can anyone tell me if i can use 75/50w sealed beam headlights in my 77 120y without upgrading the wiring
 
#2
Re: 75/50W SEALED BEAM HEADLIGHTS
ddgonzal
Posted on: 2019/6/18 10:39
50/40W original specification
The good news is that the headlight wires are heavy-duty 12 gauge (at least in the B110). This means they can handle the 75W bulbs. So no need to replace the headlight sockets and wires. However the main fusible link is only 20 gauge... just add a relay to bypass the main harness and feed in power through an extra Fuse Battery --> 20A fuse --> 20A relay --> to existing headlight socket (cut wire and splice in) Use an inexpensive 20A relay from an old Nissan. Or buy a new inexpensive 20A relay. See Headlight Relay
#3
Re: 75/50W SEALED BEAM HEADLIGHTS
pager
Posted on: 2019/6/21 0:34
I just did this upgrade for our Plymouth Duster.
Its just plug in! Wiring Harness Cheapest and easiest way to upgrade your lighting circuit. Now no high current needed through the light switch!
#4
Re: 75/50W SEALED BEAM HEADLIGHTS
ddgonzal
Posted on: 2019/6/21 6:50
Wow, that's the way to go, even used parts will run more $ than that
Looks like it has a fuse on the red wires. Do you connect that straight to the battery cable? Attach file:  plug-n-play relay harness.jpg (29.79 KB) signal plug + new headlight plugs.jpg (21.20 KB) new earth wires.jpg (20.96 KB)
#5
Re: 75/50W SEALED BEAM HEADLIGHTS
pager
Posted on: 2019/6/24 0:23
Yes its a fused wire. Done in minutes. The only concern i had is with the quality of the relays, but i guess i will just replace them if they ever blow.
#6
Re: 75/50W SEALED BEAM HEADLIGHTS
cadet1200
Posted on: 2019/6/24 7:49
So can this be used to upgrade from sealed beam headlights to H4 halogen?
#7
Re: 75/50W SEALED BEAM HEADLIGHTS
ddgonzal
Posted on: 2019/6/24 8:10
H4 halogens will plug into the orginal wiring. However the original wiring is not rated for the extra current flow. That eBay kit specifically says it works with H4 bulbs (100W/90W type). It will also work with 75W Halogen bulbs or even with stock-specification bulbs (50W/40W)
#8
Re: 75/50W SEALED BEAM HEADLIGHTS
cadet1200
Posted on: 2019/6/24 8:57
I might have to give it a go then. I have had a set of Hella halogen inserts kicking around in the garage for years....just have to find them now!
#9
Re: 75/50W SEALED BEAM HEADLIGHTS
datsgold
Posted on: 2019/6/24 9:32
That harness looks easy enough and cheap so might be the go i think cheers
#10
Re: 75/50W SEALED BEAM HEADLIGHTS
pager
Posted on: 2019/6/25 1:31
They should be an upgrade even if you use the standard bulbs as there will be more current available to the globes compared to the standard wiring harness.
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