Originally Posted by
rekmeyata
Interesting light, thanks for sharing it with us here. Have you by chance compared it the usual bicycle rear lights like the Cygolight Hotshot or the Light & Motion Vis 180, or some other such bright lights?
And what battery does it take, how many, and how long will the the bats last?
The BULL and similar strobeheads are designed to be wired to a vehicle's light system, and will produce full output on a range of input voltages (around 9 to 15 volts). In my case, I wired it to a 9.6-volt radio-controlled car battery first, but the connector wasn't very reliable, so then I switched to a DiNotte battery pack. I don't think I ever ran it dead, so I'm not sure how long it would run, but... a long time.
I have some comparison photos in this thread:
http://www.bikeforums.net/showthread...cs-amp-remarks If you right-click the photo links and open them in new tabs, you can toggle back and forth. The BULL has a rippled beamspreader that puts out a wide rectangular beam.
The thing about reflectors that most of us are forgetting is that they only work as designed if the headlights on the car are properly aimed and at the right angle to the reflector.
Another problem with reflectors is that at closer ranges, the reflected light from the non-driver's-side headlight
isn't coming back towards the driver. It's coming back towards the passenger. So what happens when the driver's-side headlight is burned out...? Yeah, reflector effectiveness takes a plunge at closer ranges. Unfortunately there are a lot of cars in my area with only one working headlight.