i bump into this and it look very interesting :
http://www.fvlighting.com/k4000-led...kit.html?acc=c81e728d9d4c2f636f067f89cc14862c
Beam Angle: 60°
Illuminance: 2860 lx @ 1m (Daylight) / 2490 lx @ 1m (Bi-Color)
Power Variation: 0-100% (Stepless)
Color Rendering Index (Ra): ≥85%
Correlated Color Temperature (CCT): 5600K (Daylight) / 3200-5600K (Bi-Color)
http://www.fvlighting.com/k4000-led...kit.html?acc=c81e728d9d4c2f636f067f89cc14862c
Beam Angle: 60°
Illuminance: 2860 lx @ 1m (Daylight) / 2490 lx @ 1m (Bi-Color)
Power Variation: 0-100% (Stepless)
Color Rendering Index (Ra): ≥85%
Correlated Color Temperature (CCT): 5600K (Daylight) / 3200-5600K (Bi-Color)