RGBW White 4500K Multi-wavelength LEDs 5050 SMD LED

Do LED lights have different wavelengths?

Yes for sure. As long we able to put different LED chip and different wavelength in the same SMD LED package. Which is same as follow: 5054BRGWW239. This is a 4 chips custom LED that with red, green, blue and white LED combined in same LED frame. Since there are several LED chips inside the package, we will be able to control the color by the pad on the bottom of SMD LED. So that this LED can offer red(625nm LED), green(520nm LED), blue(465nm LED) and white color when we light up the related pad. At the same time, we can also light up both of them or three of them at the same time with differnt current to adjust the emitting color as what we need. 

Multi-wavelength SMD LED dimension;

*UV LED, Yellow led, IR LED, Orange LED are all available in this SMD LED package*

Production of SMD LED;