My 53' Mercury is still the 6 volt positive ground electrical system, running off the original 35 amp generator. I have included a video showing: daylight, sealed beam and LED headlights, on the same road. The new LED bulbs are mounted in a 7" Hella headlight housing, are a direct plug and play conversion.
The cost:
Hella lights: $71.16
LED bulbs: $32.89
Total cost: $104.05
The Hella lights came from:
https://www.quadratec.com/products/9...t=lower-funnel
The bulbs came from LEDLight.com:
https://www.ledlight.com/led-headlam...-polarity.aspx
LED headlamp works either positive ground or negative ground. Wide voltage from 5 to 30 Volts AC or DC. No polarity, Bi polarity, non polarized. Made with 16 CREE 2525 smd for super bright. The headlamp lights on both sides. Dual filament both a low and high beam. The low beam Lumen output is up to 1200 Lumens. The high beam is up to 1800 Lumens. Great for vintage and classic cars. Long life up to 30,000 hours. CE and Rohs certified. Made with aluminum to keep the CREE lamps cool so they can operate for a long life. The circuit board is constant current so the leds should not flicker. Available in White 6500k. Perfectly works with product 69854 is a 7" round semi-sealed housing and 68721 is a 5"x7" rectangle housing. Both these semi-sealed housings use the P43T bulb. This allows both the housing and the bulb to be upgraded for the older vehicles that are 6 volt positive ground or 12 volt positive ground. Uses only 800mA for low beam and 1.4A for high beam. CE Rohs. Compatible with: 1949 Plymouth convertible
utube video:
https://www.youtube.com/watch?v=s0WPn8gKSpI&t=17s
Pictures:
Going from top left, then right to end then back and down to next row, etc:
1. Hella bulb in place
2. original bulb in place
3. original bulb plugged in w/original plug
4. Hella bulb plugged in w/original plug (no modifications)
5. Lights side by side
6. Back side of lights
7. LED bulb
8. Original bulb light pattern
9. LED bulb light pattern
10. Original bulb on left, LED bulb on right , light pattern
11. Hella box