Traditional incandescent bulbs use a lot of energy to produce light and are no longer manufactured. This is due to the fact that 90% of the energy is given off as heat. The lost energy is money we are throwing away.
You have many choices in energy-efficient lighting. The most popular bulbs available are light-emitting diodes (LEDs). Although they can initially cost more than traditional incandescent bulbs, during their lifetime they save you money, because they use only 205-25% of the energy and last up to 25 times longer.
LED bulbs are currently available in many products such as replacements for 40W, 60W, and 75W traditional incandescents, reflector bulbs often used in recessed fixtures, and small track lights, desk lamps, kitchen undercabinet lighting, and outdoor area lights. They come in a variety of colors, and some are dimmable or offer convenient features such as daylight and motion sensors. LEDs work well indoors and outdoors because of their durability and performance in cold environments. Look for LED products such as pathway lights, step lights, and porch lights for outdoor use. You can also find solar-powered outdoor lighting.