1,Tube diameter :T2,T3,T4,T5 2,100% Tir phosphor 3,Real power:>85% 4,Lifetime:6000~10,000hrs 5,CE,ROHS,EMC ... ,000hrs life time,2,High luminous flux,high perfomance, stable light beam, no flashing, protect your eyes,3,The outer casing ... ,Using the basic tricolor phosphor, the lamp tube is good at color-rendering with high light effect. Better energy-saving capacity.5 ...