That takes time and skill, so you can expect to pay a premium price for the effect. Normally, it is anywhere between $25 â $50 if you buy individual spray tans, in a package of 5 or10 it will be less.
LEDs are âdirectionalâ light sources, which means they emit light in a specific direction, unlike incandescent and compact fluorescent bulbs, which emit light and heat in all directions. For this reason, LED lighting is able to use light and energy more efficiently in many applications.
For an interactive learning experience, check out the Choose a Light Guide. 1  Light Bulb Purchasing Guide (PDF, 652 KB) 2  ENERGY STAR certified bulbs use less power (watts) than incandescent bulbs. 3  ENERGY STAR certified bulbs are available in a variety of shades. 4  Not all ENERGY STAR certified bulbs are dimmable.