I am looking to upgrade the lights on my 1976 914. I have found H4 units with replaceable bulbs. I can buy 100W bulbs for off road use only. Can they be used safely without using an additional relay?
thank so much!
I installed them with relays to avoid possibly melting wires. I later swapped the headlights for LED's With the 100w bulbs you can watch the volt meter drop.
Please do not put 100W bulbs in your car; our wiring is old and it will not do well. Instead, consider a set of these LED headlights:
https://vintagecarleds.com/shop/7-inch/vc5000-ultimate-7-inch-kit/
I have them in my car. They are plug and play and very bright with no issues for oncoming traffic. I have never been flashed by oncoming traffic.
They are always installed with relays
Helps if your batter is in the front
I ran them for 15 years but went to led
Much friendlier on the alt and night driving without worrying
H4 are past history, LED best compromise.
Thank you all! Glad I checked
Got most of your next questions right here
https://914rubber-tk.com/doku.php?id=led_headlights_troubleshooting
Entire kit here
https://914rubber.com/h4-lens-and-led-bundle-1
Attached thumbnail(s)
100W bulbs should not be used without a relay. Ask me how I know. Using them without a relay will result in Lucas, the Prince of Darkness, visiting your cars wiring and fuse box to teach you a lesson in the mystery of electricity.
I had 80/100w bulbs back in the day. You need to run a dedicated 8 ga wire and relays. The stock system can barely handle stock watts.
I moved up to HID bulbs, but it needs to be in an e-code (euro) h4 housing. The DOT housings glare too much. This was way before LEDs got good. Today I'd buy LED bulbs as they are about the same price as a good HID kit.
I used to run aircraft landing lights in the fogs. I often drove the long dark roads of central Washington up to Wenatchee. Found that the truck drivers wouldn't tun off their brights. Making it almost impossible to see. I little click on and they dimmed theirs.
But they did an excellent job of lighting up the road. Yes, I used a relay.
I was a dumb kid, just know about relays as my dad was an electrical engineer.
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