... T8 old tube 14w,28w,35w t8 to t5 fluorescent light Specification:14W, 21W, 28W, 35W1, Energy saving ... treatment or PC body4,With pure tri-phosphor fluorescent tube(high efficiency, longer life greater than ... luminous flux from 90Lm/w to 110Lm/w , better brightness.7, With reflector, the light efficiency can increase ... (H):15000~20000Lighting Efficiency:90Lm/w~110Lm/wTube Diameter:16mmTHD:less than 10%