LED brake lights update
 

I have decided to just stick with incandescent bulbs for brake lights. WAY TOO MUCH HASSLE.

I ordered what I thought was the correct bulbs, but they were double contact.

I then ordered the single contact bulb, which is what I need for my 35. Single contact bulbs arrived but didn't work. I ordered replacements, and they didn't work either. 4 bulbs in a row couldn't be bad, or could they?

I called Steiner and the tech guy said to run another ground to the socket on the single contact bulbs with alligator clips, that the double contact was providing the ground. I did that at several locations. No help.

For what it's worth, the double contact bulbs DO WORK. Other single contact bulbs, both LED and incandescent, work fine so it ain't the ground to the socket.

SUGGESTIONS? I'm about to lose my religion.

Re: LED brake lights update
 

If you have positive ground, your problem may be current direction. LEDs are diodes so they allow current to go only go in only one direction.

Re: LED brake lights update
 

Yup! Polarity sensitive....

Re: LED brake lights update
 

Never thought of that, and apparently neither did the tech guy. I'll check with Steiner tech guy again. I think they show this bulb to NOT be polarity sensitive. HOWEVER, I'm gonna stick with the way Henry built it on these bulbs.

Thanks Pete and Eagle43. (As you can probably tell, I flunked High School "Radio and electricity".

Re: LED brake lights update
 

Lawson, you should be able to check to see if the bulb is polarity sensitive with and ohm meter. Continuity (short), as seen on the meter in one direction, reverse the leads of the meter and no continuity (open).

But yeah, just "stick with the way Henry built it." Paint the inside reflectors white....

Re: LED brake lights update
 

I found some 6 Volt positive ground LED bulbs on AliExpress. They have both 1156s and 1157s in amber, red and white. They sell for about $5 each including shipping from China and they are super bright. I'm using amber for the front (clear lenses) and white on the back (red lenses) on my 1952 F1. They also sell 6 Volt negative ground bulbs and I've just ordered some for my 1926 Chevy and my 1929 Whippet.

Re: LED brake lights update
 

Most of the tail lights I have seen, except 32, use one light bulb, with a double contact. One contact is for the running tail light and the second is for the brake light. Both contacts use the shell of the bulb as common ground.

Re: LED brake lights update
 

I like Marts' idea of putting a chrome or silver cupcake liner behind the bulb. Cheap and effective.

Re: LED brake lights update
 

I actually took apart an LED light bulb designed to work in the 4 volt ranges.
1) the are polarity specific meaning neg ground
2) they have a current limiting resistor in series with the LED (not all led bulbs will necessarily have the current limiting resistor but I would expect most will)
3 I hope too come up with an easy option to modify dash lighting with bright leds so I’ll let you guys know if I’m successful

Bob

Re: LED brake lights update
 

Me too on the cup cake liners in tail lights in my '37. fit perfect in tail light bucket.concentrates and facites the light. Tom.

Re: LED brake lights update
 

I tied some inmy 52 Vic, didn't work 4 me either. Put a 3rd light in the back window, it got attention.

Re: LED brake lights update
 

Yep,also like mfirth i used the led brakelighter kit in my '37. it really does work for most distracted idiots.

Re: LED brake lights update
 

Almost all the LED light bulbs offered for sale are negative ground which almost all cars use. For the "positive ground" Fords you need to buy LEDs that are specifically sold as "positive ground" or they won't work. LEDs are the way to go if you can since they produce a lot more light and a lot less heat and use less amps.

Re: LED brake lights update
 

What kind of tail lights? '35 should be a dual contact bulb.

Re: LED brake lights update
 

Agree with you, Rich! There's no telling what he has pieced-together. It's going on that pick-up in his avatar. Coop

.

Re: LED brake lights update
 

My two cents, white reflects better than the chrome or silver reflectors. If you think about it, what do all building lights have for background, white. I make my cupcake reflectors out of white paper.

Re: LED brake lights update
 

https://www.ledlight.com/6-volt-posi...ed-lights.aspx


These guy's have you covered
R

Re: LED brake lights update
 

yo,fortyfords, why i use reynolds bright shiny cup cake liners unlike building lighting which have white back round they in turn do not have to project the light through a thick red lens. all automotive tail lights have either a pillowed,or mirrored reflector. respecfully, Tom.

Re: LED brake lights update
 

Got 6 volt LEDs in my 40. Taillights,license plate light ,parking lights,dash lights & dome lights.

Re: LED brake lights update
 

Ronnie

Thks for the link ordered 4 dash lights and 2 rear lights fiqured I would give them a shot will let you know but based on the description they should

Re: LED brake lights update
 

what is the code # for the led lights for the stop light /running lights as there are dozens of bulbs listed

Re: LED brake lights update
 

After a long search for 6V non-polarity 1157BAY15D (tail Lights), the only one I found was from Uiandsion and it took forever to get, shipped from China. Installed them and they are no brighter than the incandescent originals. Not enough leds on each bulb. Found many with more leds but they are all 12V.

Re: LED brake lights update
 

I fitted LED tail lamps, they failed pretty fast,

Re: LED brake lights update
 

My uncle is looking to get LED lights for his new '40 project. Too bad to hear those led lights with positive ground aren't easily available. We'll discuss the route for better led lights after we finish installing the suspension from 4Wheelonline onto the truck and clear the garage.

Re: LED brake lights update
 

These are the ones I bought from Aliexpress. These are 6V and come in both positive and negative ground and single and double contact and in three colors. It does take a month or two for them to arrive. Be careful with the shipping. They charge a lot more if you buy more than one at a time which is a funny way to do business. You can find them at https://www.aliexpress.com/item/1005...21ef18025DirrY

Re: LED brake lights update
 

After many hours tracing circuits I discovered that there is a problem with these 1157 bulbs. Although they are double contacts, the contacts are connected internally so that there is only one circuit inside the bulb instead of two. Consequently the signal lights will work by themselves and the park lights will work by themselves but they will not work both together since there is a crossover.