- 800 claimed lumens
- 2h 00min reported battery life
- flashing mode
- no pulse mode
- 4 brightness levels
- Included mounts: Strap
Fenix BT lights use an external battery pack separate from the light head.
The BTR20 has an external rechargeable lithium battery pack. It has a single LED with custom optics designed to produce a hybrid flood/spot beam.