Just got this in yesterday, and it's surprisingly bright! Haven't done any official testing but the unit itself is very nicely constructed. The spread appears fairly narrow but will do some further testing / playing. Overall its nice quality will have get a light meter to test actual output.
The stock driver seems somewhat small, i can almost guarantee that the leds are underpowered, as one of the settings only kicks on 5-6 leds as a night/moon light effect, that could be done with a resistor... Though the lack of active cooling still implies they are not being run near their peak...
Hallway with lights off
With led facing that direction
Camera doesn't do the best at capturing but significant light output