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The LED indoor lighting market has great potential. At present, various forms of LED lamps have been seen in the market. Both traditional lighting companies and emerging LED companies are aiming at the replacement of indoor lighting. However, the survey results of the reporters show that it is difficult for LEDs to shake the monopoly position of traditional lighting fixtures in the short term.
LED or energy-saving lamp or energy-saving lamp efficiency and cost contest
LED development of the indoor lighting market, will inevitably adopt a gradual strategy, the market share of large demand for lighting in public places is huge, naturally should be listed as the first choice for market development, such as offices, hotels, shopping malls and other places. Taking office lighting as an example, the current office lighting requirements for luminous flux are not the same. With a luminous flux of 500 lm/w as the dividing line, the market situation of 500 lm/w is simply analyzed.
Luminous flux is less than 500 lm directional light source performance:
The LED lamp specifications and price surveys of office lighting with a luminous flux of less than 500 lm/w have been found in the market. The manufacturers have developed low-lumen LED lamps, including projection lamps, small projection lamps and downlights. The luminous flux of the luminaire is hidden below 500lm, and the average luminous efficiency of the LED luminaire is within 30w/w-80lm/w. The price of LED lamps is very different. Generally between 60-150 yuan.
Existing low-light-weight office lighting has three types of incandescent, halogen, and energy-saving lamps. LED replacement incandescent lamps and halogen lamps can be recycled in two years, while energy-saving lamps are required for 4.5 years.
Luminous flux is higher than the performance of a 500 lm directional light source:
LED lamps with office illumination flux above 500 lm are still LED projection lamps and downlights. The luminous flux of lamps is up to thousands of lumens. At present, the high luminous flux developed by the manufacturer is as high as 1700 lm/w or more, so the development power exceeds 20w. The average luminous efficiency of the lamps is 40-100lm/w, which is expensive.
Environmental advantages are clearly worth looking forward to in the future
LED enters office lighting. Compared with traditional light source lamps, it still has the advantage of low lumen luminous flux. Although the pre-purchase price is too high, the mercury that penetrates into the groundwater brings harm to the environment after the fluorescent lamp is discarded. Traditional fluorescent lamps have unparalleled advantages, and consumers have considerable advantages in terms of long life and power saving costs.
In some places that work continuously for 24 hours, such as underground parking lots, factories that work 24 hours a day. Saving electricity is also very important. As mentioned above, a T8 LED fluorescent lamp can save about 20 watts of electricity, saving 20x365x24/1000=175.2 kWh in one year. If you calculate it at 0.7 yuan per kilowatt hour, you can save 122.64 yuan in electricity costs in one year. In two years, you can save the cost of this LED fluorescent lamp. The electricity bill saved in the future will become pure income.
The high-light flux office lighting market is now the market with the most competitive light source lamps in the indoor lighting market, including incandescent lamps, fluorescent lamps, halogen lamps, complex metal lamps and energy-saving lamps. Among them, the recovery time of incandescent lamps and halogen lamps is about 3 years, and other light sources such as incandescent lamps and double-metal lamps are back in time for 7-10 years. Back to this time is longer. In the office lighting market with high luminous flux (above 500 lm), LED lamps should face the competitive advantages of energy-saving lamps, energy-saving lamps and other lamps, and the existing cost-effective lamps have obvious advantages in the market. The market is difficult.
LED as a lighting fixture, in addition to the advantages of performance, the problem of life expectancy depends on the company's technology maturity, including the driver and junction temperature and other issues to further solve the problem. On the whole, in the choice of the application market, a gradual strategy should be adopted. It is better to choose public markets and commercial lighting as the market for advanced development. (On behalf of the author's point of view, more exchanges) 