This is a PL Lamp, compact fluorescent light bulb.\r\nThis bulb has a wattage of 11W.\r\nThis compact fluorescent bulb uses an edison screw cap, ES (E27).\r\nCompact fluorescents are some of the leading bulbs in energy saving as they can cut your lighting costs in half.\r\nThis bulb has an average bulb life of 10,000 hours.\r\nThis edison screw bulb will allow you to light up any room with it equivalent wattage of 50W.\r\nThis PL 11W compact fluorescent lamp is included in our one year guarantee, as are all of our products on our website electricals247.co.uk.