8W, 600 Lumens Mightylite Solar

Batteries sizes vary, upon order spefication. 

During the day, the solar panel charges the Mightylites lithium batteries. When fully charged the Mightylite provides continuous low-level courtesy lighting from dusk-till-dawn, boosting up to full power for 30 seconds when movement is detected by the built-in PIR. If the battery charge falls below 65%, the Mightylite automatically operates at a lower light level from dusk-till-dawn and restricts the on time after PIR detections, to preserve battery life.
The Mightylite Solar Digital LED Floodlight is constructed with an impact-proof UV stabilized polycarbonate facing, tough aluminum body and is weatherproof (certified to IPX6) and highly resistant to birds, insects and extreme weather conditions. The compact polycrystalline silicon solar panel is designed to operate in hot environments continuing to charge the battery in temperatures as high as 50°C.