Many LED lights can replace spiral heat lamps or power-saving bulbs, from 5-40 watts, low-power heat lamps to 60 watts (just about 7 watts). As of 2010, some lights can even replace higher power bulbs, such as a 13 watt bulb that is comparable to a 100 watt incandescent bulb. (General thermal lighting depends on performance standards, about 14 to 17 lumens / watt, depending on size and voltage. According to EU standards, a "energy-saving bulb" equivalent to a 60-watt heat bulb, at least Can output 806 lumens.)
Most LED bulbs are designed to be undimmable, but some are designed to work with dimmers and have a narrower illumination angle. Since 2010, these bulbs have started to fall from $30 to $50. LED bulbs are more energy efficient than power-saving bulbs, and have a long life of up to 30,000 hours if heat dissipation is appropriate. The incandescent lamps generally have a life of only 1000 hours, and the energy-saving bulbs are only about 8,000 hours. Therefore, LED bulbs can be used for about 25 to 30 years, and the luminosity decays little with age. The ENERGY STAR standard specifies that after 6,000 hours of lamp use, the photometric attenuation should be within 10% and the worst should not exceed 15%. Unlike fluorescent lamps, LED bulbs are mercury-free. LED bulbs are also available in different colours. Although the price is higher, the power and maintenance costs are lower, which can be offset.