12 Exist Problems in The LED Lighting Industry

There are 12 exist problems in the led lighting industry.

1. LED color issues
Single LED applications basically does not exist the problem of chromatic aberration, but if a large number of LED to be put into use or a lamp with multiple LEDs, will highlight the problem of chromatic aberration to first say a group of lamps, if a glance the light of the inconsistent color, I want a happy mood they want to make a discount as LUXEON LED according to the color temperature is divided into eight military region, right in several residential and then in each Military Region, in a certain extent, a wide range of chromatic aberration control, but the same color area with a number of LED differences still exist, and this difference still can not run away to the naked eye provocation.

2. LED Insulation
(Insulation mentioned here refers to heat the substrate of the LED's positive and negative) would not say that we first discovered the insulation of the LED, but at least the big manufacturers questioned feel scared it is currently not resolved simply just take stop-gap measure, such as aluminum substrate to the insulation (the first aluminum plate did not do insulation, now almost all do) and we may think we can not understand. single LED is not insulated, has little effect on the series of many stars on a problem.

3. LED against pulse
This issue with the manufacturer remains controversial, in my actual application does exist, the main reaction in the cold pulse on power-on moment, the moment of a small number of LEDs in the cold state power breakdown or disconnect my opinion, is not static or high pressure due to (power voltage is within range)

4. LED light-emitting angle
Various manufacturers of LED lens package is not the same even if the same light angle (nominal angle), the effect is not the same, making the selection of poly mask difficult, to still not universal.

5. The hidden dangers of the potentially blinding LED
LED light points makes the center of brightness and super too concentrated, it is easy to hurt people's eyes, although some of the lighting manufacturers make efforts in this regard, but because of regulatory lag, only the moral problem of man.

6. LED heating problem
In theory, the LED is not very heat, but because of the immaturity of the current technology, the LED heat Yishi well known, I do not want to say.

7. The LED efficiency is low (luminous efficiency)
LED power conversion efficiency is too low (because there is no device to test, not giving specific figures).

8. The LED brightness is insufficient
Brightness is insufficient, making the current LED lighting industry can only play a supporting role, mainly used for decoration.

9. The LED light fades and life
Produced by the Mainland or Taiwan businessmen LED light  fades and life problems more serious, without further ado, the big-name vendors, such as the LUXEON nominal 100,000 hours, I am afraid only of their own psychological clearly, together with the thermal solution is good or bad, drive the matches are likely to affect the LED light decline and life expectancy 100,000 hours is just a selling point to!

10. The LED drive power
Most of the drive lines are borrowed from the switching power supply from the course, a very small number of lines is dedicated to the LED driver, but the effect is basically the same, due to the LED need DC drive, take the constant current control, the drive circuit is very large and can not compared with electronic transformer, and the efficiency is relatively low, reaching 80% to operator (single has not yet reached). In addition, firms in pursuit of applicability, the claim that a drive belt to ten random access (one, two , ..... all OK), in fact, this is a misunderstanding, although it is a constant current, high starting voltage will often LED to death in an instant.

11. LED modeling is limited
Makes the shape of the LED lamps LED single-sided light-emitting characteristics, subject to certain restrictions.

12. The LED unit price is too high
An import 1W-3W LED should be about three dollars, but also made more than 10 blocks (of poor quality, intellectual property rights) and about a 6 LED lamps sold to the hands of consumers, almost more than 1000 yuan RMB , Do you want to buy a color TV or buy a lamp.
Source: http://www.hqew.net/events/news-article/3582.html