These are the ones I have, reposted since it was so long ago.

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https://www.ledlight.com/a-13007-d-a-13 ... round.aspx
Description:
"Headlight bulb 6 Volt Positive Ground or 6 Volt Negative Ground. 6V AC or DC. Up to 700 Lumen. The candle power is up to 50 CP. Dual filament design. Designed for reflector headlights since most of the leds are side firing directly into the reflector. The bulb has some forward firing leds to make it brighter. This LED bulb is designed for early vintage Ford Model T and Ford Model A. Long life up to 30,000 hours. Plug and play remove the old incandescent bulb and replace with LED bulb. The LED uses less power than a incandescent bulb so it is easier on the wiring of the older vehicles. The bulb comes in White 6000K and Warm white 3000K. The Warm White simulates the original color of a incandescent light bulb. How ever the Warm White is about 5% less output than the 6000K bulb. CE and Rohs certified. The original light bulb was 21 CP/21 CP, then you could upgrade to 21 CP / 32 CP and then finally 32 CP / 32 CP or 32 CP / 50 CP. These original bulbs decline in Lumen output compared to a slow Lumen decline with LEDs. This LED bulb is 55 CP brighter than all original headlight bulbs. Since these bulbs are non polarity sensitive they work in both positive chassis and negative chassis. The maximum overall length is 1.944 inches. The maximum diameter is .760 inches. This led bulb is 6 volt and 360 degree illumination. Compatible with: Model A Head Light Bulbs A-13007-C 1919-1931 A-13007-D 1919-1931 1946 Air coup 1919-1931 Ford 1926, 1927 Ford Model T 1928, 1929, 1930, 1931, 1932 Model A A-13007-C Snyders A-13007-D Snyders 6572BX Langs"
The phone lines were closed last night, but here's the number. Zack has been very helpful for me. 1 877 283-5060
And yes they do flicker at idle, apparently as the points open and close in my distributor. I imagine a timer would be similar. You don't see it unless you're looking at them, I don't notice at all driving and the flickering is almost nill once the cutout closes.
This is also not a bad thing, people notice you more. There's a kit available for MCs to make the light flicker as a safety feature...
I will have to adjust my generator to about a 2-3 amp charge. I am at 7-8 amps now, with the lights on. Before was about 2-3 amps discharge with the lights on.