Innovative Lighting's 3-LED Step Light with Surface Mount features 3 LED light and operates 9-16 volt DC systems. There is also a 24 volt version available. These Step Lights measure 1.71-inch in length x 0.65-inch in width x 0.40-inch in diameter. Rated at 200,000 hours of service life, these LEDs are shock and vibration proof. Cool to the touch. Corrosion resistant. Potted to seal out moisture.