> Product IP Rate: IP33|> The Lumen of LED Light per piece: 1.5 lumen|> Battery Life of product: 12 months|> Battery Weight per piece in gram: 12.4g|> Battery Working hours per charged: 6 - 8 hours|> How many hours for fully charging time: 10 - 12 hours|> Item Materials: plastic 30%, stainless steel 70%|> Voltage: 1.2V|> Wattage: 0.06W