This is an intelligent induction lamp that can bring great convenience for your household life. Features: Various sizes for choice:20cm,30cm,40cm,60cm and 80cm. Can switch among different light colors: warm light, warm white light and white light. Adjustable brightness. Simple installation. No need to punch hole. 3 meters sensing distance.120sensing angle. Can be installed at various places:bed side, desk, bathroom, balcony, wardrobe, corridor, etc. 60 days (induction mode) or 5 hours (lighting mode)long lighting hours. Specifications: Item color: space silver Item length:20cm,30cm,40cm,60cm,80cm (optional) Battery:500mah,700mah,900mah,1000mah Wattage:0.42w LED beads quantity: 2 Material:aluminum + ABS Charging method:USB Package size:860*41*21mm /33.8*1.6*0.8in, Package weight:330g/11.6oz Packing List: 1*lamp 1*USB wire 1*user manual 2*magnetic sheets