Don’t incandescents and xenons use a lot of electricity?
Not if they are configured on a low voltage strip lighting fixture. Incandescent technology became very cost effective when low voltage transformers replaced the magnetic ballasts of previous fluorescent housings, rendering a 120V lamp a 12V power saving device. Low voltage lighting systems can also help extend incandescent bulb type up to 7,500 hours, minimizing replacement costs as well as electrical costs.