Designed for use in energy and commercial building and construction markets, UESL End Seal Signal Light Kit provides visual indication that heat trace circuit is energized. NEMA 4X rated end seal terminates one cable and indicates power with universal voltage LED indicator light. Offering 360° visibility, design accelerates and facilitates installation with self-regulating and constant wattage heat trace cables. Single-piece clamshell design eliminates all screws and minimizes required tools.