As a modern home and commercial lighting indispensable materials, lamps and lanterns are not only lighting functions so single. Different light sources can be configured to create different lighting and lighting effects.
So, what are the common types of lighting sources? What are the advantages and disadvantages of different lighting sources? What kinds of spatial situations do they apply to? Below, the author will count for you in the future home lamps and lanterns light source classification and characteristic, give you super practical light source choose and buy skill.
1. Luminous flux: the sum of the luminous flux emitted by a light source in a unit time. The greater the general power, the higher the luminous efficiency, the higher the luminous flux.
2. Color temperature: the temperature of the blackbody is called the color temperature of the light source when the color of the light source is the same as the color of the blackbody radiated at a certain temperature.
3. Color rendering: the average life of a light source to the true color of an object, when 50% of the light source is disabled, the average life of the light source.
4. Photoeffectelectro-optic conversion: How Much Light is emitted by different light sources at the same time, using the same amount of electricity. A light source with high efficiency is certainly more energy efficient than one with low efficiency.
5. Stroboscopic frequency: the number of flashes per second of the light source, the higher the stroboscopic frequency, the greater the adverse impact on vision.
1. Incandescent lamps
The biggest drawback to incandescent bulbs is their short life span, which typically ranges from 3,000 to 4,000 hours. Some low quality bulbs last only 1,500 hours. Incandescent lamp is often used in dining-room, bedroom and other space in household, look color is more comfortable.
• Advantages: small light source, with a great variety of lampshade form; versatility, color varieties, with orientation, scattering, diffuse and other forms; Can be used to enhance the three-dimensional sense of objects, incandescent light is closest to the color of the sun.
• Cons: not environmentally friendly; 95% of the energy used in incandescent bulbs is used for heating, and only 5% of the energy is actually converted into visible light; high heating temperatures, fast thermal evaporation, short life (1000 hours) , high infrared composition, susceptible to vibration, low color temperature, with yellow.
• Scope of application: Home Dining Room, bedroom
2. Halogen tungsten lamp
Metal halide lamps are a type of incandescent lamps that typically last between 3,000 and 4,000 hours, not more than 6,000 hours. This kind of lamp can be used for key lighting, for example, in order to highlight decorative paintings on walls, indoor decorations, etc. , it can be illuminated by a cold light cup, and the white light of the lamp can be changed according to different home decoration styles, be in line with fashion.
• Advantages: simple, low cost, easy brightness adjustment and control, good color rendering.
• Disadvantages: short service life, low luminous efficiency, the filament in a long time at high temperature prone to fuse, high failure rate.
• Scope of application: Automotive headlamps and rear lights, as well as home, office, office building, etc
3. Fluorescent Lights
• Advantages: energy saving, fluorescent lamps consume about 60% of the electricity can be converted to ultraviolet light, the other energy is converted to heat. The conversion efficiency of ultraviolet light to visible light is about 40% . Therefore, the efficiency of fluorescent lamps is about 60% × 40% = 24% -- about twice that of tungsten filament lamps of the same power.
• Disadvantages: it causes light fading, fluorescent lamps are not as good as incandescent lamps; the light flashes and affects vision to some extent; in addition, there is mercury pollution in the production process and after being used and discarded, resulting in environmental pollution.
• Scope of application: factory, office, school, Supermarket, hospital, warehouse and other indoor public space.
4. Compact fluorescent lamps
Cfls are popular for energy efficiency, with a 9-watt cfls equivalent to a 40-watt incandescent. Cfls also have a longer life, typically between 8,000 and 10,000 hours. Normal use of energy-saving lamps for a period of time, the lights will be dimmed, mainly because of the loss of phosphor, technically known as decay. Some high-quality energy-saving lamp invented a constant bright technology, can let the lamp tube to maintain the best working condition for a long time, use 2000 hours, light decay less than 10% .
• Advantages: high light efficiency, is more than 5 times ordinary incandescent lamps, energy-saving effect is obvious; long life, is about 8 times ordinary bulbs; and small size, easy to use.
• Disadvantages: light fading; low color rendering, incandescent lamp and halogen lamp performance of color is 100, performance is perfect; energy-saving lamp color rendering is mostly between 80 to 90, low color rendering light source not only see things color is not beautiful, it's bad for your health and your eyesight.
•Scope of application: traffic lighting, indoor lighting, landscape lighting
5.Led Light
Also known as light-emitting diode, it's a new technology. Now on the market, white LED lights in performance is good, but the current LED lights in the technical needs to be improved.
• Advantages: LED light has many advantages, such as small size, low power consumption, long life, non-toxic environmental protection, initially used for outdoor decoration, engineering lighting, now gradually developed to domestic lighting.
• Disadvantages: the price is expensive, the need for constant-current drive, heat dissipation treatment is not easy to decay. Low light efficiency, color will be missing, in the 7 band of blue and green band LED light is less, so in the display of color will be missing.
• Scope of application: traffic lighting, indoor lighting, landscape lighting
As above, Germanlite details the types of common light sources for home lighting and their advantages and disadvantages, hoping to help you choose your lighting and light sources. Lamps and lanterns light source is not more expensive more good, also be not more bright more good, suit oneself preference and space demand go.
Post time: Jun-03-2019