dimension:12.5*12.5*45.5cm weight: 213kgs working time: up 8 hours(with full charged) technology specification: 1.solar energy battery:imported polycrystalline silicon solar energy battery sets 2.light source: one hight brightness LED 3.storage battery:one 1.2v 600mah rechargeable NI-MH battery 4.color of light:white,green,yellow or tri-color,seven colors are at customer's option 5.environment temperature:-20C to 70C 6.material of body: brushed stainless steel