... Supplier 3.9W,14W,18W,20W,27W,28W,30W, 4.Patent product. T5 28W fluorescent lamp Item description:1>Material: ... feet - 14W,16W,replace t8 30W4 feet - 18W,20W,replace t8 40W5 feet - 28W,replace t8 54WDiameter:φ31 ... 5*28.5mmLuminous Flux: 2800LmFeature:1.Replace the T8 fluorescent lamp directly and energy saving up to 63%, immediate ... . 4 different adapters Installation Examples: T5 28W fluorescent lamp