I'm tempted to order one, just to see if it arrives with as much entertaining Engrish as appears on the website: "Intelligent mode can sense the surrounding light, when the light is on, the lights on the off, when the light is dark, the lights on the light..."
"Features:
1. Intelligent light control to save electricity, high efficiency, not waste electricity.
2. Highlight to meet long distance lighting.
3. Rainproof design, rainy day riding worry."

I love this stuff!

No love for Lezyne? I just got one of these recently, only mine says "Power Drive" instead of "Macro Drive" on it. Anyone had any experience with these? It is about to explode or melt or fall of the bike or something? I've only had it out on one commute and there's still enough ambient light around here that I didn't need to use the whole 1100 (or however many it really is) lumens, but it doesn't weigh much and seems to do the trick so far.