Brand: U`KingFlashlight Material: AluminumLamp beads Model: CREE XPE-Q5Lamp beads: 1Lumens: 600LMMode: High-Low-StrobePower Supply: 1 x 14500 (not included)Operating Voltage: DC = 3.7V / 1.2VStart Voltage: DC = 3.7V / 1.2VRun Length: 2-3H (depending on the battery capacity calculation)Range Distance: 200 mLife: 100000Focusing: YesWaterproof grade: IPX-4 (rain normally does not dive)Switch Location: TailLight cup material: glass lensFlashlight lens: convexBulb Color temperature: 7500-8000KFlashlight battery installation: flashlight itself indicate positive and negativeFeatures: adjustable focus・ retractable flashlightFunctions: climb・ work・ travel・ hunting・ first aid・ cycling・ daily use・ Camping / Hiking / Caving・