1. Watt: 4W 6W 8W 13W 14W 21W 28W 24W 39W 54W2. Using triphosphor fluorescent powder, good lighting effect, small color difference, CRI up to above 82.3. Several colors: Daylight, coolwhite, warmwhite and colorful.4. Using 16mm lead-free glass tube, with high transmission rate, more energy saving and berefiting environment.5. High lumen retaining rate.6. Saving material. Hiht output series
