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With the continued development of the industry, the leap of technology breakthrough, the application of the promotion, LED light efficiency is also constantly improving, prices continue to fall. The emergence of new modular dies has also led to an increase in the power of individual LED tubes (modules). Through the continuous efforts of the industry, the breakthrough of new optical design, the development of new lights, and the single product situation are expected to be further reversed. Improvements in control software also make LED lighting more convenient to use. These gradual changes reflect the broad prospects of LED light-emitting diodes in lighting applications.
LED is called the fourth generation light source, which has the characteristics of energy saving, environmental protection, safety, long life, low power consumption, low heat, high brightness, waterproof, miniature, shockproof, easy dimming, concentrated beam, easy maintenance, etc. Various indications, displays, decorations, backlights, general lighting and other fields.
LED advantages: high electro-optical conversion efficiency (close to 60%, green, long life (up to 100,000 hours), low operating voltage (about 3V), repeated switching and non-destructive life, small size, low heat, high brightness, sturdy and durable, Easy to dim, colorful, stable beam, no delay at startup;
LED shortcomings: high starting cost, poor color rendering, low efficiency of high power LED, constant current drive (requires dedicated drive circuit). In contrast, various traditional lighting has certain drawbacks.
Incandescent lamp: low conversion efficiency of electro-optical light (about 10%), short life (about 1000 hours), high heat generation temperature, single color and low color temperature;
Fluorescent lamp: electro-optical conversion efficiency is not high (about 30%), harm to the environment (including harmful elements such as mercury, about 3.5-5mg / only), non-adjustable brightness (low voltage can not be illuminated), ultraviolet radiation, flicker phenomenon, start Slow, rare earth raw material price increase (phosphor powder accounted for 10% to 60% to 70% of cost), repeated switching affects life; large volume.
High-pressure gas discharge lamp: large power consumption, unsafe use, short life, heat dissipation, and mostly used for outdoor lighting.