SILVA LED Headlamp Explorer 4 Grey Product Name: SILVA LED Headlamp Explorer 4 Grey [Domestic Genuine Product] Used once for mountain climbing and then stored. Parts other than the headlamp are unused. Good waterproof performance, so I think it's highly versatile. There's a small area where the rubber has peeled off, please refer to the photos. Thank you. [Product Specifications] Size: 64 x 45 x 40mm Weight: 90g (including batteries and headbands) Battery Type: AAA batteries x 3 (with monitor batteries) Battery Life: 100 hours (minimum brightness) - 40 hours (maximum brightness) (when used at +20°C) Brightness: 10-400 lumens Illumination Distance: 8-85m (The distance varies depending on battery usage time.) Waterproof Level: IPX7 (Waterproof level "IPX7" means that it can be submerged in water 1 meter deep for 30 minutes without water entering.) Material (Lamp Body): ABS plastic Operating Temperature: -20 to +60°C [Regarding Lighting Time] The lighting life is measured according to the "ANSI FL1 STANDARD". (The time it takes for the brightness to decrease to 10% from 100% after 30 seconds of turning on the power) Therefore, the time at the effective illuminance is a little more... Type...LED light Brightness (lumens)...300-499lm