Input voltage (V): DC 12V Luminous efficiency of bulb (length/width): 80 Color rendering index (Ra): 90 Dimmer supported: Yes Lighting solution services: lighting and circuit design, on-site metrology Service life (hours): 50000 Working hours (hours): 20000 Product weight (kg): 0.015 Power supply: dry battery Lighting period (hours): >12 IP rating: IP44, IP44 Lamp body material: ABS Color: Blue Warranty (years): 1 year Light source: LED Light-emitting diode: 3 watts COB LED mode: low-high flash Material: ABS+rubber Brightness: 80lm Beam range: 25 meters Weight: 15 grams Size:87*34*28mm(head) Battery: 2*AAA dry battery (not included)