Specifications: Output Power: 1.5W Luminous Flux: 130LM Total Emitters: 12LEDS CCT/Wavelength: 5500-6500K Voltage (V): DC 5V Power source: Solar panel, home electricity charging Lifespan: 5000hrs Available Light Color: Natural White Sheathing Material: Plastic Package weight: 180g Product size (L x W x H): 12.00 x 6.80 x 6.80 cm / 4.72 x 2.68 x 2.68 inches Package size (L x W x H): 13.00 x 7.00 x 7.00 cm / 5.12 x 2.76 x 2.76 inches Maximum brightness of bulb: 130LM (equivalent to a 15W incandescent lamp). Capacity of lithium battery: 850ma/3.7V; continuously effective lighting of fully charged bulb: 5h; Bulb Using Time: 2-3 hours. Q&A Question: How long is the wire between led bulb and panel? Answer: 3.5m（11.48ft） Question: Does it come with batteries? Answer: Yes, it comes with a built-in rechargable battery in the light bulb, so you can use the light at night. The solar panel recharges the bulb of battery. Question: How long does it take to charge, and how long does it last on a full charge? Answer: It will be fully charged about 6-8 hours and the bulb will last 2-3 hours before dimming after fully charged. Question: Will this work in the below freezing winter temperatures? Answer: Yes, it would. This light can work during -50℃-100℃ （about-58℉-212℉） Question: Does it continue to charge while the bulb is on? Answer: The light is extremely weak if you charge with the light on Question: Is the solar light waterproof for ourdoor using? Answer: The solar panel is waterproof but the led solar bulb isn't. Question: Does the film on the solar panel need to be removed? Answer: Yes, remove the film will be better for charging.