RGB is a color system in which red, green, and blue light are combined in various proportions to reproduce almost any color in the visible spectrum. R, G, and B values range from 0 to 255 (256 levels for each color). The total number of available colors is 256 x 256 x 256; that’s 16,777,216 possible colors.
No, the LED lights are built into the lamps.
Yes, the lamps can be turned on while charging.