Gigantic power: the maximum output has been increased to 4200 lumens. The maximum runtime has been extended to up to 15 days. Automatic brightness reduction: thanks to the built-in temperature and distance and distance sensor, the torch automatically reduces the brightness level automatically when an obstacle or overheating is detected. Intelligent switch: The rotary switch allows you to... adjust the brightness of the Seeker 3 Pro can be adjusted quickly and precisely to suit your needs be adjusted.