COLOUR 1000 is the brightest adjustable Mulit-Colour built-in Wi-Fi LED light bulb with the power to choose from 16 million colours including warm to cool whites, from a single bulb.
1 x LIFX Color 1000, Edison Screw (E27), Pearl White
Argos has it for the same price but no stock,
Elsewhere it's usually 59.99 or more
No much of a bargain but it's still good