Truck-Lite Sky-Lites 
Is the interior of your enclosed box-trailer too dark? Add a few Sky-Lites.
Truck-Lite’s Sky-Lites bring in external daylight to assist with additional trailer interior lighting, without the need for added power or wiring.
The 4-inch round polycarbonate Sky-Lite mounts on the upper sidewall of a trailer or body, giving a small windowed appearance and allowing natural light to enter the trailer and increase daytime visibility.
The Sky-Lite installs easily with a snap-in design and peel-and-stick adhesive gasket.
