GTV light source GU10 is a term for a type of bulb with a GU10 cap.

Light sources with this cap are very popular due to their low power consumption and long service life. GU10 light sources are easy to install and replace, making them popular in homes and workplaces

LED light sources are much more energy efficient because they produce light directly from electric current, without the need for a heater as in the case of an incandescent bulb.