The batteries inside are of small capacity and not as advertised. In a test, they lasted for 1.5 hours of continuous strong light. At least they are removable and I can replace them with larger ones.

The lens is fine. (It is exactly the same as the BL-2199). It has a blue light in addition to the white one. It also has a red light on the back of the battery case, obviously to make you visible to drivers when riding a bike. It comes with a home and car charger with a jack, not microUSB. The two included 18650 lithium batteries are almost lightweight, although they claim to be 8800mAh on the outside - lies. These will need to be replaced (I put in PANASONIC NCR 3400mAh green ones) and then the flashlight lasts for hours.