From the introduction of domestic and international standards to see the application of LED spotlights

LED as a new generation of revolutionary light source, has received widespread attention since birth, in recent years, technology development is rapid, whether light effect, color, or power saving capability has significantly improved. So far, LED has been far more effective than incandescent light bulbs and fluorescent lamps, halogen lamps have been left behind. The application of LED in various fields has been a trend which cannot be halted the application of LED in outdoor road, and tunnel lighting has been like a raging fire, although there are still some problems need to continue to improve, but the energy-saving potential is an indisputable fact. On this basis, because of LED indoor lighting market show signs of critical outbreak, is also affected by the foreign application in interior lighting, domestic LED manufacturers have introduced LED indoor lighting products, including LED lighting as directional lighting because of good lighting and energy saving effect in some new buildings were rebuilt by. But because of the novelty of the standards and norms are not perfect, a time of domestic LED indoor lighting market, including LED lighting market chaos, whether manufacturers or users have the feeling at a loss. In response to this situation, the relevant institutions at home and abroad are actively developing standards and norms, in order to regulate the product guide consumption.

US Energy Star rules for LED spotlights

The United States Department of energy (DOE) that SSL (solid state lighting) technology is in a period of rapid development, the diversification of the product so that the product properties are not the same, but as an emerging technology and emerging industries, the use of materials, driving system, configuration, control and photometric characteristics different from the traditional source, but has not formed the perfect the industry standard, cause a series of problems in the product evaluation and distribution and other aspects, so it is necessary to establish the experimental process and the new industrial standard. After 3 rounds of the draft release, the U.S. Department of energy for the LED light source energy star standard released the final confirmation version, will take effect in August 31, 2010. The energy star standard proposed light efficiency, luminous flux, luminous intensity, color, display, packaging, noise, luminous maintenance rate and other aspects of requirements for integral LED lamps, but also require fast cyclic stress tests on integral LED lamps.

Table 1 specific requirements of the energy star standards for all lamps

All lamp requirements

Correlated color temperature

The lamp must contain one of the following specified color temperature (according to ANSI C78.377-2008), and the range falls within the seven - order chromatic quadrilateral defined in the annex.

Nominal correlated color temperature

Correlated color temperature (K)

2700K

2725 + 145

3000K

3045 + 175

3500K

3465 + 245

4000K

3985 + 275

Color maintenance

During the life of the product (6000 hours), the chromaticity change in CIE (U ', V') chromaticity diagram in the 0.007.

Color rendering index

The lowest color rendering index (CRI) was 80

Dimming

Can be adjustable light, can also be adjustable light. Product packaging must indicate whether adjustable

guarantee

From the date of purchase must provide at least 3 years warranty, including repair or replacement

Lumens Maintenance

When running 25000 hours, the lamp should be able to output at least 70% of the initial lumen

Allowable Lamp Bases

Must be a lamp holder listed in the ANSI_ANSLG standard C81.61-2007

Power factor

More than 0.70, the power is less than or equal to 5W and low voltage lamp without minimum power factor requirements

Minimum operating temperature

The minimum working temperature of the power supply is -20 DEG C or lower

Output frequency

More than 150 Hz

Electromagnetic and radio frequency (RF) interference

The manufacturer's designated power supply for residential applications must comply with the FCC consumer requirements (FCC 47 CFR Part 18).

noise

The sound level of the power supply shall be grade A

Instantaneous current protection

Power supply shall comply with class a operation in IEEE C.62.41-1991.

working voltage

The lamp can operate in the range of 110 to 130 Volts

Aiming at the energy standard of directional lamp, such as spotlights, the author puts forward the special requirements. It provides light effect when the lamp diameter less than or equal to 20/8 inches minimum is 40lm/W, when the lamp diameter greater than 20/8 inch minimum light output is 45lm/W; the lowest (BRERKR) equal to 10 times the power of the lamp was replaced; luminous maintenance rate requires 25000 hours is greater than or equal to 70%.

National semiconductor lighting engineering research and development and Industry Alliance on the provisions of LED spotlights

Alliance national semiconductor lighting project in order to guide the reflection type self ballasted LED lighting products (hereinafter referred to as spotlights) production and use of design, application and development, standardize and guide the lamp products, also the standard recommended specialized techniques, the technical specification is soliciting opinions. The main technical specification for lamp LED lighting products, the provisions of the requirements of MR and PAR series of LED lighting products, which include product specifications, classification of initial luminous flux, initial luminous efficiency and luminous maintenance rate basic optical properties, electrical safety requirements and radio disturbance characteristics, the rated voltage of 220VAC50Hz with E14, E27 lamp, MR16, PAR20, PAR30, PAR38 and other products.

According to the requirements of the technical specification, the initial luminous flux of the product shall not be less than 90% of the rated luminous flux, not more than 120% of the rated luminous flux. 3000 hours of luminous flux maintenance rate of not less than 96%, the luminous flux of 6000 hours to maintain the rate of not less than 92%, the luminous flux maintenance rate of not less than 10000 hours