The Litom 20 Big LED Solar Sensor-Powered Wall Lights (2-pack) are now available on Amazon for only $28.95 & FREE shipping in the US. Cheapest ever!
These solar-powered wall-mountable sensor-triggered LED lights are rated IP55, and are a great solution for lighting entrances, stairways and small gardens. Each unit contains 20 LED lights and a large movement-sensor ball. There's a switch at the back to set the desired behavior of the sensor.