These fittings are classed as energy efficient and can be used to comply with part L of the Building Regulations. Fitted with E-Line lamp holders with electronic ballast for use with 10/13 watt G24 compact fluorescent lamp. This reduces the power consumption by a factor of 5 compared with an incandescent lamp. The light output of a 10 watt compact fluorescent is equivalent to a 60 watt incandescent lamp with an approximate life of a minimum of six times longer than its equivalent incandescent lamp.