Colour Changing Light Bulb : With more options 120 multi colour, it will meet your needs for a variety of colour and mood lighting.RGBW LED Light Bulb: Can be used for general lighting,equal to 75W incandescent. Various decorative lighting, coloured mood lighting.Dual Memory: Can memorize the last mode and brightness or mode. There is no need to set the colour you like or brightness you need, it it very convenient.DIY FLASH and SMOOTH: Smooth mode, colour tone is more softly making the atmosphere more comfortable (speed adjustable) DIY FLASH is a dynamic jump mode. The program can be set for colour and order. There are five kinds of speed option. It supports not only multiple lights working at the same time but also keeps the consistent frequency of colour changingFACTORY DIRECTLY SUPPLY: The product includes: colour changing light bulb * 1, remote controller * 1, user maual*1.More than 10 years experience in researching and development of light bulbs, 18-month warranty and 30 days money back for Amazon customers. If you have any problem, Please do not Hesitate to contact us.