The TM21 test is mainly to predict the life of LED light sources. And use the data of LM-80 to estimate the long-term life performance of LED components and lamps/bulbs.

What’s TM21 Test? TM21 provides processing methods for the data measured by LM80, which mainly including the following:

a. The data fitting method in the form of exponential function is given.

b. The correction method of fitting life (70% light decay life) is given.

c. The detailed expression method of life is given.

d. The interpolation method for calculating the lifetime at a given point temperature is given.

Note: Before TM21 calculation, the LM80 report of the lamp bead must be prepared. And then the whole lamp can be subjected to the ISTMT temperature rise test before the calculation can be carried out.

Steps to use TM-21 to estimate the life of LED lamps

1: The LED component supplier conducts an LM-80 experiment at 3 temperatures (55/85/optional temperature) for at least 6,000 hours on its LED Source (Package/Array/Module).

2: Estimate the long-term life data of 3 test temperatures (55/85/optional temperature) according to the TM-21-11 formula.

3: Obtain the In Situ Temperature of the LED lamp bead placed in the LED lamp. And refer to the ISTMT (In Situ Temperature Measurement Test) test program to obtain the temperature of the LED lamp bead in the LED lamp. And the test temperature position must be the same as the Ts setting position of LM-80-15.  As the temperature measurement point position is called TMPLED (LED Temperature Measurement Point).

4: Interpolate the calculated results of the measured TMPLED and TM-21 to obtain the estimated lifetime value of the TMPLED.

 

ERP reqeust for machine tool lighting. LED machine tool lights belong to LED lighting category, so should meet many kinds of reqeust for  LED lighting in different area (EU, USA, China).

ErP energy efficiency in Europe has been compulsory for phase requirements since 2010. The second phase of the requirements will be enforced in 2011. Its mark is CE Mark, there is no requirement for login, no requirement for laboratories. And ErP does not yet have level requirements. For now, refer to the level requirements of European COC VI.

ERP reqeust for machine tool lighting: ERP certification role:

1. Ensure the free circulation of ErP (EuP) within the European Union;

2. Improve the overall environmental performance of these products to protect the environment;

3. Contribute to the stable supply of energy and enhance the competitiveness of the EU economy;

4. Protect the interests of industry and consumers.

ERP certification instruction

ERP Energy Efficiency Directive EU .1194/2012 will be formally implemented in 2013. In 2012, the directive EU 1194/2012 will be issued; the directive will take effect in 2013 20 days after its issuance; the implementation phase requirements in 2013; the second phase requirements will be implemented in 2014; 2016 Implement the third stage requirements;

ERP certification energy efficiency certification includes:

1, the damage rate of 6000 hours is greater than or equal to 0.9, (because of the long test time, this requirement will be implemented from 2014);

2, 6000-hour luminous flux maintenance rate is greater than or equal to 0.8 (because the test time is long, this requirement will be implemented in 2014);

3, the number of switching times before failure is greater than or equal to 15000 times (rated life is 30,000 hours) or greater than or equal to rated life less than

half of the hour;

4, the starting time is less than 0.5 seconds;

5, the time required to reach 95% luminous flux is less than 2 seconds;

6, the early failure rate is less than or equal to 5.0% (normally lit for 1000 hours);

7, the color rendering index is greater than or equal to 80%, and the color rendering index for outdoor or industrial use is greater than or equal to 65%;

8. The color tolerance is less than or equal to 6db;

9. Power factor requirements: power is less than or equal to 2W, no power factor requirements; 2W to 5W, PF value requirements greater than 0.4; 5W to 25W, PF value greater than 0.5; Power greater than 25W, PF value greater than 0.9.

Our machine tool lights are compliance with ErP standard and will get certification one by one.