Experience with LED headlamp bulbs?

Ford_Freddie, I went to that website, but I don't understand some of the terminology:

Replaces all standard single filament bulbs as used in fixed or dipping reflector type head lamps on vintage and post vintage cars. Suits vacuum dippers, solenoid dippers and Barker type dipping systems.

What are "dippers"............?
 
These?? .................................................or This ??
 

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AL in NY said:
Ford_Freddie, I went to that website, but I don't understand some of the terminology:

Replaces all standard single filament bulbs as used in fixed or dipping reflector type head lamps on vintage and post vintage cars. Suits vacuum dippers, solenoid dippers and Barker type dipping systems.

What are "dippers"............?
Click to expand...

Low beams. The reflector or entire headlight would tilt or "dip" to aim the beam lower.
 
After further reading, looks like these bulbs won't work in a Model A with "non-dipping" headlights. From their website:

We continue to test our prototype BA15d dipping headlamp bulb in a variety of driving conditions. Results are very good with a bright white light and a crisp beam pattern. More testing will be carried out in to January.
 
Maybe these would be the right ones:

Our new direct replacement for your existing filament headlamp bulbs.
We call them "Ledlamp" bulbs.
Change your headlamps to ledlamps!
6v and 12v LED Dipping headlamp bulbs with the following caps to suit all cars and motorcycles.
BA15d
Fits all British and some American 1930 - 1955
P15d (American Pre Focus)
Fits most Americans and Austin Seven repro headlamps
P36d (British Pre Focus)
Fits all British 1954 into the 60's
Ba20d (Bosch 2 pin)
Fits German and other continental vehicles
BA21d (Marchal 3 pin)
Fits French and other continental vehicles

A crisp, white light with an excellent beam pattern that will change your night time driving experience.
Equivalent to a 45/40w filament bulb.​
 
I believe these would work in a 1928 to early-29 Model A headlight that was standard until Ford came out with the "new" Two-Light headlight system in early-'29 (the 2-filament headlight bulb setup).

The 1928 headlight had either a "parking light" (small, 3 cp bulb) or a "driving light" (the big, 21 cp bulb). This headlight only shone in one position (straight out).

The later Two-Light headlight system has one filament off-center, so the beam shines down (dips) instead of shining straight out. The second light switch position uses the filament that is correctly positioned in the center of the reflector, so it shines a good "high beam" out in front of your (which oncoming drivers would not like).

Do they say what the current draw would be per bulb?
 
Dipping is just another word the British use for dimming. I spent 2 years in England back in the early 1960's. We are two countries seperated by a common language. Unless you experience it you would never believe the different meaning for the same word such as Pencil erraser US = Rubber in the UK, Keep your chin up US = Keep your pecker up UK, What time do you want me to wake you up in the morn US = what time do you want me to knock you up in the morn UK . And it goes on and on.
 
Marvin/TN said:
Dipping is just another word the British use for dimming. I spent 2 years in England back in the early 1960's. We are two countries seperated by a common language. Unless you experience it you would never believe the different meaning for the same word such as Pencil erraser US = Rubber in the UK, Keep your chin up US = Keep your pecker up UK, What time do you want me to wake you up in the morn US = what time do you want me to knock you up in the morn UK . And it goes on and on.
Click to expand...

Sometimes I wonder whether we do speak the same language. Over here, we are different again in many of our terms but think we speak English, not American but there seems to be more and more American creeping in. At least we understand each other.:eek:

As for dippers, on many European cars of the '20s, they used a single filament globe focused for open road driving. When a car came the other way (or in the city) the driver would "dim the lights" and that is exactly what happened. In the "dim" position, the switch put a resistor in the line supplying power to the headlights, thus delivering a slightly lower voltage to them so they appeared dim.
 
Looks interesting but I have a question. The p43t tipping bulb is a 20w bulb and puts out 2400 Lumens. The bulb that might work on a Model A is the 6V 50w bulb. But it is rated at 700 Lumens. One of the Lumens numbers must be wrong.
 
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