Basic Info.

　　The sample is 600*600mm in specification, with a measured size of 595*595*10mm.It has a warm white light with the color temperature of 4000k.

　　It was widely used in commercial, office, residence etc., and can completely replace the 3*T5 Grille light.

　　Testing Appliances

　　Parameters of the lighting source

　　According to actual measurement, the sample has a decrease of 4.68%on its rated power, which it meets the state regulations within 5% tolerance range. And notably, it has reached a luminous efficiency of 108.69lm/w and a luminaire efficiency of 100%, which guarantees greater energy saving and environmental protection when meeting the rated flux. The glare index of the sample (UGR) ranks high in the industry.

　　Lighting luminaire efficiency is commonly known as the brightness which has a greater impact on the visual. When luminaire efficiency is lower, then environment is relatively darker, it easy to fill tired. Takes a long time lighting in places such as offices, high luminaire efficiency light will help alleviate fatigue.

　　Color Parameters

　　Relative spectrum

　　Part of the Color Parameters

　　Note：

　　Electric Parameters: U=219.97V，I=0.15798A，P=33.309W，PF=0.9585

　　Integration Time: T=720.00ms

　　Environmental temperature: 25℃

　　Environmental humidity: 65%

　　Testing location：centre - oriented

　　Comfortable is the basis of evaluating lighting quality good or bad, and color parameter is the one of the important factor which affects the comfortable lighting. CRI indicates the level of true color of the illuminated object by light from the lamp. The higher CRI of the light shows the actual color of illuminated object. The following table shows different CRI values required for different application.

　　The sample with a measured color temperature of 3974K, warm white which is commonly known as natural light. People in this tone with no obvious visual contrast psychological effects, and easily give rise to a sense of comfort and pleasure.

　　The CRI is 81.9 which fully meet the requirement to the place of correctly judge color.

　　When the Special R9 is figure 1, indicating that the product of the Red color reducing power performance is acceptable.

　　In addition, CRI restricted the level of luminous efficiency to some extent. In general, the higher CRI, luminous efficiency will be relatively low. Integrated the capabilities of luminous efficiency and CRI performance of this sample, enterprises in order to make the panel light cost performance optimization in the manufacturing process, to proper balance of color reaction efficiency and luminous efficiency performance that ensure to provide the most cost-effective high-efficiency under the best comfort. I think it is particularly suitable for the office environment.

　　Aging test

　　It can be seen from the testing results that none of the data has noticeable changes,which shows that there is very little effect of temperature changes on the samplelight guide panel. But the luminous flux and luminous efficiency get a small rise, itbelong to the reasonable error in the process of testing. And by the way, it must be pointed out that such phenomenon will not occur inpractical use.