They are brighter 9Watts RGB Colour and WarmWhite LED in 1 bulb. They only work with the new RGBW 4 Channel Colour Remote or the new LimitlessLED Wifi Bridge 3.0. The wifi bridge is backwards compatible with White, RGB and RGBW bulbs, but the new RGBW colour remote only works with the new RGBW bulbs.
They are also available on the LimitlessLED website. Both the standard B22 bayonet style, and the E27 screw cap style for RGB+W are available. And work universally on all voltages 90-250V.
-Hamish.