Dialight and Peerless Electronics' flat and domed versions of the 657 series panel-mount indicator feature a fully-sealed and potted design, making them impervious to dust and water intrusion and in compliance with IP67/NEMA 4X standards. Using the same high-impact, UV-stabilized lens material as the right-angle version, the indicators are available with tinted, diffused lenses in red, green, yellow, blue and orange, in addition to a white diffused style. These rugged, energy efficient LEDs provide up to 100,000 hours of operation, far exceeding the typical life of traditional light sources, the company says.