New PRIMUS diving lens suitable for use at a depth of up to 100 meters. It has 1 white P50 LED bulb and has 3 modes: normal mode (800 lumens), reduced mode and flash-off mode (flashes quickly). The 3 modes are switched very easily with a small magnetic slide switch on the handle of the lens. It can work with either 1 18650 or 26650 rechargeable battery, or 3 AAA batteries (not included). Comes with long adjustable cord for wrist or neck.