Can anyone tell me whether spotlights save electricity? What other lamps can save electricity?

1. LED light source has high luminous efficiency

Comparison of luminous efficiency: incandescent light efficiency is 10-15lm, tungsten halogen light efficiency is 12-24 lumens/watt, fluorescent light 50-90 lumens / watt, sodium lamp 90-140 lumens / watt, most of the power consumption becomes heat loss.

2. LED light source consumes less power

The power of a single LED tube is 0.03-0.06 watts. It is driven by DC and the driving voltage of a single tube is 1.5-3.5 volts. Current 15-18 mA has a fast response speed and can be operated at high frequency. When used with the same lighting effect, the power consumption is one ten thousandth of that of incandescent lamps and one half of that of fluorescent tubes. It is estimated in Japan that if it is used LEDs, which are twice as efficient as fluorescent lamps, can replace half of Japan's incandescent and fluorescent lamps, saving the equivalent of 6 billion liters of crude oil every year. A fluorescent lamp with the same effect is more than 40 watts, while the power of each LED is only 18 watts. .

3. LED light source has long service life

Incandescent lamps, fluorescent lamps, and tungsten halogen lamps use electronic light field radiation to emit light. The filament is easy to burn when emitting light, and has the characteristics of heat deposition and light attenuation. LED lamps are small in size, light in weight, and encapsulated in epoxy resin. They can withstand high-strength mechanical impact and vibration, are not easily broken, and have an average lifespan of 30,000-50,000 hours. The service life of LED lamps can reach 3-5 years, which can greatly reduce the cost of lamps. The maintenance cost avoids the pain of frequent lamp replacement.

4. Strong safety and reliability

Low calorific value, no thermal radiation, cold light source, safe to touch, and can accurately control the light pattern, luminous angle, light color and No glare, no mercury, sodium and other substances that may harm health.