The Osram Lumilux T8 are fluorescent lamps that provide more lumen per watt and a better colour rendering than standard linear tubes. In addition, their mercury level is low. The lamp can function in existing T8 linear fluro lighting fixtures. They have a G13-type holder and measure 59 cm. The Osram T8 L 18W/827 Lumilux G13 have a very warm light with a colour temperature of 2700K. The colour-rendering index is excellent at > 80Ra. With a lifetime of 20000 hours, they will allow you to save on replacement costs. Plus, they are energy efficiency class A, so are very energy saving.