T8 fluorescent lamp as an energy-saving version. Suitable for 1:1 replacement in existing systems. Suitable for operation with VVG, KVG and EVG. Up to 10% energy saving. (Energy saving on EVG may be lower). 16W instead of the previous 18W, 32W instead of 36W and 51W instead of 58W. Average service life 20,000 hours (EVG) or 15,000 hours (VVG) (according to IEC)