The acrylic slide fits in the base which provides light to illuminate the entire slide from bottom to top. It is quite bright.
Powered by USB cord or 3 batteries (not included). Makes no heat and is safe for the little ones to handle. Costs pennies per year to operate.
Acrylic slide Dimensions - About 6.7 x 5.1 inches(17.2*13cm). Big enough to be bright but not obtrusive.