... ~240V,DC30~40V,Ra>80 PF>0.9,constant current LED driver 75~80lm/w,3 years warranty led panel ... on backside3. AC100~240V operation with low voltage constant current driver4. Suitable alternative to fluorescent lamp and traditional lighting ... fittings in: Offices, meeting room, showroom, bedroom, schools, hospital, factory, workshop, lobby, metro, airport, corridor, hotels, restaurants, supermarkets ...