... other tube at same time 6. AL PCB is better for heat cooling and longer lifetime. Product Features :1).Installation, ... size: 57X39.5X30CM 3. Gross Weight:16KG/Carton Applications:1.use( living room, bedroom, kitchen, washroom )2. School, University, Hospital, Hote3 ... , Offices6. Super-market, Department storeCertificate :48 hours Lighting before Packing : 2012 HOT SALE COB 10W LED Ceiling Downlight