How does a 3528 LED compare with a 5050 LED?

3528 LEDs and 5050 LEDs are the two main LEDs used in surface mounted diode (SMD) spotlights. 5050 LEDs are much brighter than 3528-LEDs. 5050 LED diodes are actually composed of three sets of 3528-LED diodes, so are three times the size. A 3528-LED diode has a brightness of around 6 lumens and will consume 0.06w, a 5050-LED diode has 3 times the brightness at around 18 lumens and uses three times the energy at 0.18w.

SMD stands for "Surface Mounted Diode" a type of LED used in spotlights, strip lights, bulbs, in fact most types of LED lighting.

What Does RGB mean?

RGB stands for RED, Green, Blue. RGB LEDs consist of a red, a blue, and a green LED. Each LED can be controlled to produce different coloured light. In fact because each primary colour can be controlled there is almost an infinite number of shades/colours of light produced. The number of colours available is limited only by the controlling device used.