Strong light ( 900-1200 lm ) and evenly diffused light from a compact light source ( 700mmx30mm ) directly above the work area. Wide adjustment range in height, depth and light source tilt. Excellent light diffuser with minimal losses. CRI ( Color rendering index ) 94 - very close to natural sunlight ( 100 ). Can be mounted to desk rear edge, panel, monitor and modular monitor arm. Light adjustable with ( 6 ) brightness levels and ( 5 ) color temperatures ( 3000, 3500, 4000, 4500, 5000 K ). Delayed switch-off ( 30 or 60 minutes ). Convenient control with highly visible buttons even in dark rooms. Max electrical power ( 24W ), light source max power ( 20W ).