... .4: Optimized constant-current circuit and keep the same luminance.5: Aerospace aluminum alloy and hard anodized, made by exact CNC lathe ... High definition toughened glass lens.7: High definition vacuum coating aluminum alloy reflect light cup (orange peel surface or glaze surface ... project, forestry, outdoor, explore, trip and so on. 300 Lumens LED Rechargeable Tactical Flashlight