Bike Lights Comparison3

(Comment added below on July 2011)
I found that this video was introduced at Taiwan internet forum.
Someone there says that this is not trusted because of slide of still pictures. Especially he did not seem to be able to believe the PHILIPS's brightness.
But all pictures used in this slide were taken at the same exposure EV2. Brightness, contrast, color and etc were not edited at all.
I can show the original pictures which are stored at another internet data warehouse.
The video with no exposure information and no comparison targets, is less useful for reference of real brightness than the pictures with exposure information and comparison targets. The most bright and broad light in the three is definitely PHILIPS, I must say.

(Original)
This is comparison between all-in-one lights which meet StVZO. PHILIPS LED Bike Light(LBL) and ROXIM RX5 use 4AA and LS950 uses internal Li-Ion battery.
DOSUN D1 is not all-in-one light, but for reference of illumination pattern and brightness(500lm).

Видео Bike Lights Comparison3 канала ViennaCLS