That one on ebay looks good. you can only take their word at the wavelength tho. If the 385nm are 11x more than the 400nm, their profet margens must be razor thin. anyhow, I had a white one similar to that one, A word of advice, The one I had was DIRECT DRIVE, and on 3x Alky batts, the LEDs lasted only a week before they started burning out. if you can, put a meter across the case and the (-) side of the batt and measure current, divide by 7 and it should be no more than 35mA(25-30mA would be ideal), If with Ni-MH's you are getting 30ish mA, DONT use alky batts. I would hate to see anyone pay that much for any light, then have the LED's die because the maker wanted them to run as bright as possible.
Jeff