Solar Energy 92% working efficency. Size : 125X125X77 (MM) Weight: 523g Material of the shell: aluminum alloy and polycarbonate Solar power: 3V. 50mA. 0.15W Battery: 1.2V.600mAh Flash rate: 1HZ.2HZ View Distance: 800 Metres LED: (2X3. 1X3) SUPER Bright (5000 mcd) View point: UP 25 Degree COLOURS: Red/ Green /Blue /Yellow /White (Available for two sides with different colour) Compression resistance: 1000kg / sgmm Temperature Range: - 40C -- + 75C Operating time: Over 100 Hours Successively After Fully Charging Life time: 4 Years Warrnity: 1 Years. Wave Length of the LED: Red: 625 - 665 (nm) Yellow: 585 - 595 (nm) Blue: 465 - 470 (nm) Green: 515 - 520 (nm) Packing: Carton 43X30X22 (CM)3: 12 PCS Net Weight: 7.5 KG