G13 t8 16w 51w master tl d eco fluorescent bulb philipsfluorescent bulb with a diameter of 28 mm t8advantages 10 savings in energy costs through simple bulb replacement the savings is up to 10 on the evg the additional investment is returned in less than 15 years for high quality illumination with good light quality maximum 10 light current decline throughout the entire lifespan of the bulb helps reach environment protection goals characteristics simple 11 replacement in existi