Nowadays, our company have design a new led chip , which have 4 chip inside 5050 smd , it is RGBW LED CHIP , there are Red, Blue ,Green , White/Warm White Chip inside , it is a new led chip , new technology , then the MIX color can be more different , the color can be more beautiful.

http://www.led-color.com/index.php/Product/view/id/758.html

By the way , we also have develop RGBW LED CHIP addressable led strip ,they are 60leds 20ics , they can be UCS9812,  UCS2912 LPD1882   LPD6812 and so on .  about the parameter of those led chip .

http://www.led-color.com/index.php/Product/view/id/712.html

Also the 4ch integrated RGBW 4in1 individual addressable rgbw leds and led strip--SK6812 RGBW LED Strip,

it can be 30/60/72/144 led per m.

http://www.led-color.com/index.php/Product/view/id/764.html