New White Housings, On-Lamp Switches and Powerful, Refined Beam Patterns Add to Work Lamp Family’s Depth and Versatility. Grote Industries, a world leader in high-performance LED lighting technology for the transportation industry, announced the introduction of six new versions of its Trilliant LED WhiteLight Work Lamp today. Grote’s Trilliant family was already the largest and most advanced line of LED WhiteLight Work lamps in the industry. Trilliant work lamps have gained popularity with their array of powerful, yet controlled beam patterns and superior performance characteristics.