full spiral CFL lamp tube: 1. Tube diameter: 12mm; 2. Power: 45w; 3.Light efficiency:>65lm/w 4.Ra>82. full spiral CFL lighting ... /w4.Ra>82.5.Color temperature:6500K. Description:full spiral CFL lighting tube:1.)Save 80% energy more than incandescent lamps ... , Offices, Shops, Department Stores, Clubs, Restaurants, Hotels, Supermarkets full spiral CFL lamp tube