I just purchased a Lupine Passubio XC from Gretnabikes (only US distributor, I think) they put the 25W bulb from the Lupine Nightmare Pro in it for free. I don't have a camera so I can only tell you how it compares to the system I am replacing, which is a Niterider Digital Evoloution. The Lupine light is brighter in both the full power and the econo power modes the reserve mode is about as bright as the Niterider at full power. The Lupine li-on battery is about the size and weight of two 9V batteries. Altogether about half the weight of the Niterider system (although the Niterider used a NIHM battery). There is no comparing the quality, the Lupine system is in another league. At full power the battery will run an hour and a half (haven't timed it in econo mode) and has a reserve that gives you a few minutes. The Lupine attaches without any mounting bracket, making it easy to switch from one bike to another (I have 4 bikes and purchased three extra Niterider mounts to be able to switch the Niterider from one bike to another). The Niterider cost me $235 (not including the extra mounts) and the Lupine cost me $330, but I had to send the Niterider back (the whole system) to get the "smart" battery replaced (twice) and the third one still went wacky, that meant I went without lights for a month each time and the poor quality of the Niterider connectors sent me into total darkness five times while riding (for no aparent reason) when they came apart. I don't anticipate a repeat of those issues with the Lupine light. You can mix Lupine batteries from one model of light to another and from one year to another, the connectors are the same on all models and all years.