... . No noise, no flickering.5. No UV or IR radiation in the beam, mercury free.6. Anti-shock, anti-moisture.7 ... certified. Application:High-power LED ceiling lights are widely used in office buildings, stores, supermarkets, schools, hospitals, hotel, car parks, factory floor ... days; 500~1000pcs:7 days 3.Sample can be delivered in 3 days 4.Shipping freight are quoted according to actual ...