This is a 600mm x 600mm Emergency Recessed Indirect 2 x 40w PLL Fluorescent Tube Fitting to occupy 2 x 40w Compact Fluorescent PL-L Tubes. The Centre Basket ensures there is minimal glare on computer screens, The fluorescent lighting module is ideal use within offices, commercial properties, schools, and other high-specification applications. The PL-L fluorescent lamp has a 4 pin 2G11 base. The lamp has an average life of 10,000 hours, which means it will last for many years without needing to be changed and has an B class energy efficiency rating.