Joined: Aug 2017 Posts: 994 Threads: 6
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Location: Scottish Borders
I fitted LED bulbs supplied by Dynamo and regulator conversions. They work very well and there were no problems at all. It is essential that they have a good earth. There is a big range on offer on their web site.
The car is 1929 so has no main beam which simplifies things.
There has been no problem with them flickering which seems to happen to some.
I would not go back to incandescent bulbs. A big bonus is the tiny current draw they take which takes the load off the dynamo which was turned done to 4 Amps.
Jim
Joined: Aug 2017 Posts: 50 Threads: 4
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Hi AustinWood, I also have fitted LED bulbs to my 1928 car and am happy with the conversion. My headlights do flicker at tickover which I had assigned to the bulb's sensitivity to segments in the commutator. At road speeds there is no flickering. The original 6 volt CAV dynamo is fitted.
When I fitted LED bulbs to the indicators they became erratic. This was overcome by adding a condensor next to the indicator canister. The original magneto has been replaced by coil and distributor.
Russlin
Joined: Aug 2017 Posts: 1,655 Threads: 93
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Location: Monmouthshire
Completely agree with the above. LED not only light up the highway in front of a Ruby speeding through the darkness, but the dynamo can easily keep up, the third brush can be set comparatively low rather than the desperate previous attempts to stop the battery from flattening overnight. Banned from the VSCC Measham of course, but for the brave amongst us, MCC scrutes will smile and let Sevens set off towards Exeter, Land End, Edinburgh and other points of the compass.
Joined: Aug 2017 Posts: 2,436 Threads: 33
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Location: Deepest Frogland 30960
Car type: 1933 RP Standard Saloon
With any headlamp, the location of the bulb's main output has to be at the focal point of the reflector otherwise the beam will just be scattered. Knowing the focal length of the particular reflector will help with choosing a bulb that does the job. The centre of the incandescent bulb the LED replaces should be a good starting point.
Joined: Oct 2017 Posts: 1,564 Threads: 56
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I tried LEDs which gave loads of light at low amps but no beam because the LEDs weren't on the focal point of the reflector. Then one dark night on a country lane both LEDs failed leaving me in darkness till I switched back to sidelights, i returned the LEDs to the supplier who supplied two replacements FOC but I haven't got the bottle to fit them.
Joined: Aug 2017 Posts: 1,209 Threads: 71
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I think Stuart Joseph mentioned he was trialling LEDs with built in reflectors. These would presumably solve the beam 'focus' issue. It will be interesting to hear back from Stuart when he has had a chance to test them...
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