1) Name of product : 4 U Energy Saving Lamps 2) Model No. : SM ￠14.5-4U 3) Lighting source : Fluorescent-Triphorsphor ; Halogen ; Mixture of triphorsphor and halogen 4) Diameter of tube (mm): 14.5mm 5) Power (W): 30W; 35W; 40W; 6) Flux of Light (Lm): 2300lm; 2900lm; 3500lm; 7) Voltage (V) : 220V 8) Shape: U 9) Socket : E14; E 27 ; B22 10) Color Temperature (k) : 2700k / 7000k 11) Color-rendering index : ＞80 12) Life span (hours) : 3000-4000hours; 5000-6000hours ;8000-10000 hours Packing : 20pcs / carton