The SST-50 with an OP reflector 20 degree beam and defuser lens to reduce the rings would be the best lite for me. The SST-50 can produce 1250 lumens at its maximum 5 amps, but three run at half amperage will still produce 1500 lumens with out the excess heat that will shorten their lives.
The Chinese light http://www.geomangear.com/index.php?main_page=product_info&cPath=4_41&products_id=138 has a dark spot in the middle of the beam because it uses an SSC-P7 quad die LED. It does not throw well because it makes a wide beam, the wider the beam the less bright it appears. So I want two wide beam SST-50’s http://martin-led.com/ and a triple XP-G thrower beam.
Now there is going to be a 3300-lumen lamp using a Bridgelux C2000 (http://martin-led.com/) …only good for electric trikes.
The SST-50, XP-G, XR-E, and XP-E leave no black hole in the center of the beam unlike the SSC-P7 and MC-E LED quad dies.
bright LED flash lights can best be used if you can figure out how to power them from an external battery, or just use them as they are. Dont waste your money on an over priced "Nite Rder".
I know of some one that had an expensive light and discovered that it was not water proof, the hard way. So ask!
This is the nicest one I have ever seen http://martin-led.com/ But I am going to wait for one with the new SST-50 LED's.
The vision-x are only 13 oz http://www.visionxusa.com/. The beam widths are 15 degrees euro 30 flood. I would use two 30 degree with a 15 between.
information, but not always clear, so learn to ask questions.f=86http://forums.mtbr.com/showthread.php?p=6041619#post6041619
And this one: http://www.candlepowerforums.com/vb/showthread.php?t=239456
My ideal lamp
3000 lumens over a double wide beam to 30ft ahead (the wider the beam the less bright it is) then a longer beam to 75ft ahead, all driven at low enough power to not exceed 120 degree f ??? I want to use two Martin lamps (http://martin-led.com ) with sst-90’s for efficiency but may need to settle for SST-50’s. Or build my own array.
build a light http://bikeled.
visual aids:
battery holders: http://www.turboferret.co.uk/ O BEAM SHOTS http://fonarevka.lux-rc.com/