GT1 8-in. and 12-in. full ball LED traffic signals, designed for fixed- and span-wire applications, deliver consistent color, brightness, and readability in any weather. Resist blowing rain, heavy winds, and high temperatures. O-ring gaskets and over-molded electrical lug connectors prevent moisture and dust penetration. Failed-state impedance protection detects loss of LED load to reduce likelihood of false reading by traffic control equipment. Available with Energy Star rating.