The US Department of Energy's CALiPER program announces the latest report: a light color test for white dimmable LED fixtures, which is the first time for a survey of color LED lamps. The main purpose of this study is to standardize the test of adjustable white LED light products required test items. In this context, to define a clear specification, it is necessary to identify the necessary test items and to explore the feasibility and broad applicability. The test tested a total of eight white dimmable lamps, mainly for different aspects of the test, including the color range (CCT) and dimming (luminous flux). Legend: linear lamps and non-linear lamps dimming performance comparison. (Source: US Department of Energy) report the main detection of complete luminous flux measurement, in a range of color temperature, set a total of 11 test reference points, if the set point is too small, will not be able to detect the product color temperature and input, Lumen, luminous efficiency, color deviation value Duv. Test results show that future test procedures may require at least 5 to 7 reference points in order to detect a clear product placement. Increasing the test procedure may place a burden on the manufacturer, but you can shorten the time to measure the different settings by using a simplified stable measurement process. The report raises questions about
existing methodologies and the feasibility of using such products, which will be discussed in the short term. More report details can be downloaded from the US Energy Agency's website. For more information on LED, please click on the China LED network or focus on WeChat public account (cnLED Recessed Spotlightw2013).