The solar-powered motion-activated J-Light from J & J Chemical Co. easily installs in the roof of a portable restroom through a 1 1/2-inch hole. The self-contained solar panel acts as a day/night sensor, saving energy during the day and charging the batteries, allowing the light to activate only when it’s dark. The long-life rechargeable batteries are an environmentally friendly solution. The motion sensor turns the light on when activity is detected. When the user leaves the restroom, the unit will remain lit for 35 seconds. Five high-intensity LEDs emit 30 lumens of light. 800/345-3303; www.jjchem.com.