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.
The Environmental Protection Agency reports that if every household in the United States replaced just one standard incandescent light bulb with an energy-efficient one, the nation would annually save about $600 million in energy costs --- enough to power 3 million homes for a year (see references 1).FLs use about one-fourth the energy of standard incandescent bulbs. This, combined with their longer lifespan, translates into significant cost savings. For example, a CFL bulb has a lifespan of approximately 10,000 hours.