LED lighting market on the current market price difference is very far, and say how good their own products, as an outsider to choose how to use when the quality of LED lamps to determine whether the standard? LED lighting quality to see a few parameters:
1, light failure, better LED lamps in 25000 hours before the light failure <30%; determine the main factors of light failure is the light source is good or bad, the difference between the thermal structure; foreign original package of high-power light source, such as CREE light source Light failure is better than the domestic package of light source, as the layman generally do not see the light source, a simple way to judge the main price, the original foreign packaging light source than the domestic package of light source price much higher; so to buy better quality LED The lamp must provide the manufacturer information of the light source.
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2, light effect, that is, the number of dollars per watt, the unit LM / W, he is to reflect the energy-saving lamps, energy-saving lamps, the higher the luminous efficiency. At present, LED light efficiency and compact fluorescent light efficiency and almost the same, with the increase in LED luminous efficiency, CREE this year may produce 186lm / w light source.
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3, the light source, is the high power LED or straw hat or piranha type of LED; LED lighting with high power LED as a light source, the price is higher; and straw hat or piranha type LED price is very cheap, not suitable for lighting Level light source.
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4, drive power, good drive power can guarantee the life of the overall lamp, LED theoretical life is 100,000 hours and the general drive power life of less than 100,000 hours; in order to ensure the overall life of the lamp, driving power is also a key link; On the one hand the LED must be constant current drive, if the use of low-cost constant voltage drive will shorten the life of the LED. As an ordinary consumer how to identify the LED drive power is good or bad? See a few parameters, light failure, life, light efficiency, and warranty life. Dare to provide long-term warranty of the manufacturers of LED lamps produced better quality. Spot high-power DC-DC converter, DC booster, 36V / 48V / 60V electric car inverter, electric vehicle intelligent DC converter.
LED lighting options:
First of all should be clear their own positioning, you need high-end or mid-range lamps. From several aspects to consider the quality of LED lamps:
1. Chip type,now the most high-end domestic use of the United States CREE 3 chips, reaching 15 yuan / W. Followed by Puri and so on, as well as Japan, South Korea. Taiwan's some chips. Personal recommendation is Puri chip, the price is higher,
2. light failure with the cooling of the lamp cooling and chip packaging is closely related to the packaging manufacturers should also be considered
3. Lumen value, now known to do 130LM / W, personally think that indoor lighting 80-90LM the most appropriate, the most mature technology
4. Color temperature and lamp body surface treatment
5. This should be said that the impact of LED lamp life of a short board, most of the LED driver can only guarantee 2 years. That is to say you 2 years after the driver can be broken because of the lighting is not bright