I purchased the GENTOS Head Wars Model HW-V233D headlight for about 5,000 yen, and it shows its age. Operation confirmed. Power source: 3 AA batteries (included). Headlight modes: three brightness levels and flashing. Battery case: red light on and flashing. Weight: 220g (including 3 AA batteries) HEAD WARS series HW-V233D Brand: GENTOS HEAD WARS series Brightness, Luminous flux (lm): 250.0 lm Beam distance (m): 106.0 m IP rating (waterproof): IPX4 IP rating (dustproof): IP6X Continuous lighting time: 35.0 hours Power source: Battery operated Color: Black