From the outside, it\'s incredibly difficult to tell this long barrel LED GU10 spotlight light bulb apart from the compact fluorescent light bulb it\'s designed to replace.It shares the same long necked spotlight body, GU10 cap and frosted lens as its predecessor, and even delivers the same cool white light within a 110 beam angle. The light bulb\'s distinctive long barrel design adds an additional 25mm to the length of its body, enabling it to fit deeper downlight fittings more comfortably than standard GU10 light bulbs. Despite the aesthetic similarities, this LED GU10 spotlight light bulb is much more efficient and much more durable than its compact fluorescent brother. Where the LED lasts upwards of 15,000 hours and requires just 3.5W to produce the same level of brightness as a 35W halogen, the CFL requires 11W while only lasting 10,000 hours.This spotlight lamp is traditionally known as a PAR16 with a GU10 2-pin twist and lock (10mm apart) base.Need more help in choosing a suitable spotlight bulb? Read our guide What is a GU10 Spotlight Bulb.