Pen Clip Mini Flashlight 1. Material: aluminum alloy, lens material: optical convex lens 2. Power source: charging 3. Power: 10W 4. Light source form: LED 5. Maximum range: 200-500 meters 6. Lamp bead mod: CREE-T 67. Working gear: 5 gears 8. Working voltage: 3.7V 9. Whether to focus: tescopic focus 10. T6 lamp beads, strong long-range shooting ability, wide irradiation range, long battery life 11. Applicable environment: hiking, camping, sf-defense, teaching, searching, hunting, daily carrying, night riding, caving, night fishing, patrol 12. Convex lens: eagle-eye convex lens, good light transmission performance, not easy to damage, strong aluminum attack head to protect the lens from wear 13. Tescopic zoom: stretch the head left and right to zoom, astigmatism-spot mode, convenient to use in different situations 14. Tail switch: rubber material, non-slip surface treatment, light touch switch to switch lighting mode; pen holder is easy to carry 15. Battery : copper-plated cylindrical battery design, copper has good ectrical conductivity, effectivy preventing poor 16. Charger and battery are not included. You need to bring one 18650 lithium battery or three AAA batteries and a charger when you buy it. 17. Dimensions: 131x35x28mm 18. Product weight: 124 grams