Common light source efficiency analysis

Light source is to allow self-luminous objects or devices, the most intuitive sun, candles, and we can now see the incandescent, etc., these are called light. Common home lighting design has five main sources, its characteristics and uses different.

A light source: Incandescent

Incandescent filament is electrically heated to incandescence by thermal radiation emitted visible light source. Its luminous efficiency was low, but good light color and light gathering capability, is the largest output, the most widely used electric light.

Performance: light efficiency is low.

Two sources: halogen lamps

Halogen lamps are filled with a gas containing part of the incandescent halogen elements or halides. It has a high luminous efficiency, stable color temperature, light and other characteristics. Suitable for the need to correctly identify the color, illumination require a higher place or prolonged intense visual work.

Performance: The brightness is more than twice the general incandescent.

Three sources: Fluorescent

Fluorescent light-emitting principle is the use of low pressure mercury vapor ultraviolet radiation during discharge, so that the phosphors emit visible light, a low pressure arc discharge source. Its rich color temperature of the light source, you can do the whole color temperature.

Performance: incandescent light efficiency is more than three times, and more energy-efficient, longer life

Four sources: metal halide

Metal halide lamp is made of the addition of various metal halide light sources in the third generation on the basis of the high-pressure mercury lamp. High luminous efficiency, good color performance, long life, is close to daylight saving a new light, suitable for stadiums, exhibition centers, railway stations and other large places of interior lighting.

Performance: incandescent light efficiency is 3-4 times.

Five sources: LED lights

LED light-emitting diode is in fact, a solid-state semiconductor devices, can be converted directly into electricity to light, new green light, its core is a semiconductor wafer. LED has a small size, light weight, low power consumption, is the ideal choice to replace the traditional light sources.

Performance: in life than traditional light sources and light effects are higher than 2-5 times.