Bike Forums - View Single Post - LEDs to replace bulbs in a bottle generator system

12-04-07 | 08:23 AM

#5

rhm

multimodal commuter

Joined: Nov 2006

Posts: 19,811

Likes: 596

From: NJ, NYC, LI

Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...

Yes, but what about these?
http://superbrightleds.com/other_bulbs.htm

PR2-WHP 1 Watt Flashlight Bulb

Flange base flashlight bulb with 1 Watt High Power White LED
Wide voltage range will operate from 2.8 to 12VDC , 80~550ma
35 lumen, 30 degree beam pattern, bottom contact must be connected to positive

Does anyone know if this will fit in a bicycle headlamp designed for a 6 v halogen bayonet bulb?

OR:

Miniature 10mm screw base bulb with 1 Watt High Power White LED
Wide voltage range will operate from 2.8 to 12VDC , 80~550ma,
35 lumen, 30 degree beam pattern, bottom contact must be connected to positive

Is this (10 mm) the same socket size as dynamo lamps use? If so, couldn't you wire it so the positive current alternates between the head light and the tail light? If so, you wouldn't even need a bridge rectifier....

For comparison's sake, does anyone know how much light (in lumens) a typical bottle dynamo light emits?

Last edited by rhm; 12-04-07 at 09:02 AM. Reason: (1) Found more stuff to include, (2) switched the photos

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