A high quality branded 13 Watt 2 Turn (2 Loops) Energy Saving compact fluorescent PL-C lamp with 4 pin base. This energy efficient PL-C lamp has an average life of 20,000 hours and has a B class energy rating. With integral starter for Conventional Control Gear Ideal for miniature luminaires and downlights for shallow recesses 4 Pin lamp available in a range of colours. What is this lamp commonly known as? GE - 13w Biax D/E Osram - 13w Dulux D/E Sylvania - 13w Lynx D/E Philips - 13w Master PL-CE