LOMON Rechargeable Zoomable Bicycle Headlight, Adjustable Focus Bike Light, 5w CREE Lamp Beads, 240 Lumens, 3 Light Modes - Strong & Weak & Strobe. SK3 Heavy-duty aluminum alloy material, anodic oxidation, portable, light, beautiful and durable. 5w CREE LED lamp beads, 240 lumens. 3 light modes: strong & weak & strobe, mechanical rotating zoom focus, range max to 200 meters. 1 * 18650 2200mAh 3.7v rechargeable li-ion battery (included). You can also use 3 AAA batteries as the power source. Run time: strong light - 3 hours, weak light - 6 hours. Can be used as handheld flashlight, can be used as bicycle headlight for night cycling as well to illuminate your path, forest trail, urban areas and so on. Improve visibility in the darkness, fog or rain.