1,LED Ceiling Light 2,ISO 9001:2000 certified 3,CE&RoHS 4,Integrating sphere 5,Led light source: super ... bright SMD3528 Super Brightness 48W LED Ceiling Light, 48w led lighting, 48w led office light, 48w led ceiling lights 1.Certificate & Patented:CE&ROHS ... : Aluminum shell + other 4.Applications:Instreading of indoor ceiling lightSchool /University /Hosipital/Hotel/Conference/ Meeting room/ Show ...