The Precision Lumatrol T-30AL stem mounting heavy duty die cast photo control is a great choice for walkway lights, parking lot lights, and security lights and is designed for high vandalism locations. Its heavy-duty cast aluminum housing is 20 times more resistant to high impact objects, like rocks and bats, than a standard plastic housing. The unit itself is rated for 120 volts, and the SPST switch comes with an external light level slide for on-site adjustment. The 1/2-inch stem has 14 threads, fits a 1/2-inch knock out, and includes moisture proof, three color-coded 6-inch leads. It functions in temperatures ranging from -40 to 170 degrees Fahrenheit.