What Led Lantern Festival can cause?
- Aug 30, 2016 -
Darren jun in line with the sincere attitude of service for the customer, today just to answer a customer's question, namely darren leds and light regulation about energy conservation?
Led lights, lamps and lanterns mainly adopts led technology as the main light source. Led as a solid-state semiconductor devices, can be directly put DianZhuan into light. The heart of the led is a semiconductor chip, chip attached on a bracket, at the end of the end is negative, the other end connected to the power positive, make whole chip is encapsulated by epoxy resin.
Now on the market there are three basic types of led lights:
Category: made of straw hat type of small power LED LED energy-saving lamps, power supply adopts resistance capacity step-down circuit. Straw hat type LED extended indicator LED packaging form, epoxy resin encapsulation, make the LED chip can not be generated by the heat, light failure is serious, a lot of white LED, in use after a period of time, high color temperature, and gradually into slant blue, become dim. There is also a manufacturer committed to the development of low light failure straw hat type LED, but since there is no change, packaging format droop is still not big difference. This kind of LED bulbs products for transitional products, low prices, poor quality.
Two categories: made of 3528 or 5050 in the patch power LED LED energy-saving lamps, power resistance capacity also adopt to buck circuit, also some manufacturers use constant current circuit, compared with straw hat type LED, SMD LED cooling slightly better, have heat conduction base board, when paired with aluminum plate, can export part quantity of heat. But due to the neglect of the LED heat, a lot of power SMD LED bulbs, no radiator, still use plastic shell, light failure is still serious. With resistance capacity step-down low-end power, due to the power grid voltage instability, current fluctuate, brightness fluctuations, moderate price, quality better.
Three categories: made LED energy-saving lamps, high-power SMD LED constant current power supply adopt isolation circuit, with a constant current, such as 5 w LED, usually adopt 5 pieces of 1 watt LED chips, series, using constant current 300 ma current source power supply, wide voltage power supply, make the power grid volatility, not change current, flux that maintain a constant brightness, 5 patches at the LED welding on aluminium substrate, aluminum plate combined on the radiator, using heat will quickly dispersed in time, ensure the LED chip temperature below the LED junction temperature is allowed, so as to ensure the real and effective life of LED bulbs. This kind of LED lights price is high, quality is good, also is the development direction of LED bulbs. (your favorite darren intelligent household lights make one step)
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