review update:

The BL-21 light itself and battery pack is fine, this thing works great for a long time

The charger, however, is junk. It already died (only charges to 3.99 volts then stops)

so I am keeping the light and will charge it's pack using my Xtar wpII and some gator clips

I cannot recommend this light 100% due to the cheezy charger,

but as a light with a small battery pack (3x18650), the BL-21 is pretty awesome