Higher-performance: The CSP LED paired with a TIR optic lens, generates a max output of 180 lumens, 48m, 20% higher than i1R 2. New Charging Type: Adopts the new USB-C port instead of the old Micro-USB port, which makes charging easier. The Built-in 130mAh Lithium-ion battery, makes the light runs up to 12 hours. Easy to Use: With a simple twist of the head, users can turn the light on/off and switch outputs.