Model: YY-SHL-605 - Set of 4 solar powered lighting system - Includes: 1 x Solar panel 1 x Controller 2 x LED light bulbs - Spec of Solar Panel: - Size: 29 x 18 x 1.8cm - Power: 5W - Voltage: 18V - Single-crystal solar cell - Battery: 48W 12V 4Ah - Cable Length: 480cm - Spec of LED Light Bulbs: - Power: 2W - 12-LED - Emits white light - Luminous Flux: 200LM - Color Temperature: 6500K - Cable Length: 488cm - Spec of Control Box: - USB Port: 5V 800mA - 2 DC Power Port: 12V 3A - Charging time of solar cell: 10~12 hours - Working time for 2W LED light bulbs: up to 12 hours