Features: Bulbs: 10 LEDs, lifespan 50,000 hours Lithium Battery: 3.7v 1000mAh, lifespan 500 cycles for charge/discharge. Size: Length 7.5" * Thickness 0.5" * Wide 1.4" Housing: Aluminum Packing: 3LED Cabinet Light + 3metal strip with double face tape+1*Instruction+USB charging cable About this item 【LONG WORKING HOURS AND RECHARGEBALE】: Built-in rechargeable battery (1000mAh high capacity), no need AAA batteries, save cost. Recharged by any 5V USB devices (like USB adapter, power bank, laptop) with included charging cable. 【STYLISH AND EASY TO STICK PERSONAL】Elegant aluminum alloy shell with magnet inside, easy to install these light strips without any tools in 2 ways.WAY 1: Free adsorption on any ironwork surface, for example refrigerator, barbecue or indoors of the gun; 2: Stick to all clean, non-hardware surfaces with the included metal strip and double-sided tape. Portable and free swap places per your desires. 【PLACED EVERYWHERE】: A perfect smart security light for