LED ceiling light Lambda Dif Surfaced The Lambda Dif Surfaced LED ceiling light is a modern replacement for conventional light sources operated with fluorescent tubes. With its long, rectangular shape, Lambda is perfect for corridors or hallways. The microprismatic diffuser ensures a soft and even light. The LEDs generate a high light output and have an excellent service life thanks to passive cooling. The body is made of sheet steel, the diffuser is made of PMMA. Features - with switchable electronic ballast - Light emission: 74° / 83°, direct - Color code: RAL 9003 (W03) - Color location tolerance (initial MacAdam): 3 SDCM - Ambient temperature: - 20 °C to + 35 °C Energy efficiency class:A+