This opal LED golfball (round) from Philips is designed to mimic the appearance and behaviour of an incandescent light bulb, while delivering all of the benefits associated with LED technology.A unique lens design produces the same sparkling, warm white glow you might expect from a traditional filament light bulb. The resultant brightness and intensity can then be manipulated via a compatible dimmer switch, much like you would with a traditional light bulb.Though the aesthetics and functionality are reminiscent of an incandescent light bulb, the level of performance and efficiency afforded by its LED componentry is anything but. This LED light bulb serves as a direct retrofit replacement for 25W filament light bulbs, but in reality, only requires 3.5W to produce the same brightness and quality of light.It also boasts a nominal lifetime of 15,000 hours, which is around 15 times longer than most traditional filament light bulbs. Throughout its operational life, this vastly superior efficiency and longevity can reduce your lighting bill by up to 90% when compared with the performance of traditional light bulbs of similar brightness.Features an SES-E14 small Edison (14mm) screw base.