High Performance: 4 high-performance LEDs for an amazingly bright 4,200 lumens, 31% higher than the Seeker 2 Pro. Smart Proximity Sensor: Built-in thermal and proximity sensors to ensure maximum safety in case of overheating or lens obstructions. Powerful & Rechargeable: A large-capacity customized 5000mAh rechargeable battery, ensuring a max runtime of 15 days. Smart Lockout & Unlocking: It gets locked out automatically after 30 seconds of non-operation. Rotate the knob switch over 90 degrees to unlock it. Upgraded User Interface: Long-press the rotary knob to access 4 brightness levels or rotate it for stepless dimming. Output: 4200 lumensRuntime: 15 days Beam Distance: 250 meters Battery ORB3-217C505000mAh 3.6V 21700 Size 132*35*28 mm