Wide power range: 40W~240W. Special circuit design, single LED's damage won't affect others' normal work. Modular design and tool-less open for easy replacement and maintenance. High Lumen output up to 165lm/ w with high quality LED chips. Variety applications with different mounting Accessories. Multiple lighting control options are available, e.g. DALI, 1-10V, motion sensor. Designed to last at least 100, 000 hours at L70. Multiple lighting distributions are available.