Devices, apparatus, systems, and methods of installing LED (light emitting diodes) for glass tiles and glass blocks. The LEDs can be housed in flexible strips having flexible bendable transparent housing sleeves with ends that can interconnect by male and female ends to one another with various types of interconnectors. Each separate sleeve can house up to 33 LEDs in a transparent plastic sleeve. A transparent connector sleeve can be slid over the interconnected ends and heat shrunk in place. The glass tiles can be laid out to uniform joints spacings between the glass tiles of approximately 3/16 of an inch. The LED strips can be placed on a surface layer of transparent grout that has been laid in the joint spacing, followed by a top layer of transparent grout. The transparent grout can be removable grout and include clear Silicon. The LED strips can have peel and stick back layers with adhesive backing that allows mounting to the lower surface. The LED strips can be placed with glass tiles, and other types of tiles such as but not limited to ceramic tiles, stone tiles and the like, as well as with glass blocks. Splitter(s) can be used to run parallel runs of LED strips at different spaced apart locations.