Hi guys,
Thought I'd share some pictures of my new Completely Over the Top Bike Light, or COtTBL.
http://www.atnf.csiro.au/~sjackson/bikelight/
At its heart is a 3W Luxeon-III emitter, with narrow Fraen collimating lens and Luxdrive driver circuitry.
The switch at the back toggles between off, high beam (3W) and low beam (1.5W). It's able to be powered by anything from 5V to 15V or so. The driver just takes the appropriate power from the battery.
It runs for about 5 hours 40 on high beam, or 12 hours low beam from my stick of five 3Ah Sub-C NiHM cells, and should run for about 20 hours high beam or 40 hours low beam on my Li+ pack.
It's bright - really bright. At a guess (though I have no instruments with which to confirm this, it's brighter than my 5W vistalite light.
Regards,
Suzy
Thought I'd share some pictures of my new Completely Over the Top Bike Light, or COtTBL.
http://www.atnf.csiro.au/~sjackson/bikelight/
At its heart is a 3W Luxeon-III emitter, with narrow Fraen collimating lens and Luxdrive driver circuitry.
The switch at the back toggles between off, high beam (3W) and low beam (1.5W). It's able to be powered by anything from 5V to 15V or so. The driver just takes the appropriate power from the battery.
It runs for about 5 hours 40 on high beam, or 12 hours low beam from my stick of five 3Ah Sub-C NiHM cells, and should run for about 20 hours high beam or 40 hours low beam on my Li+ pack.
It's bright - really bright. At a guess (though I have no instruments with which to confirm this, it's brighter than my 5W vistalite light.
Regards,
Suzy