Reading and writing table lamps are the most widely used types of lamps in lighting appliances, especially the lamps that claim to be "eye protection", "learning", "reading", "comfort", "moisturizing eyes" and so on. If you log in to a shopping site now, enter the words "eye protection lamp" and find that there are countless types of "eye protection lights".
This year's 3.15 nights will expose the strobo problem, and the identification of the quality of reading and writing desk lamps will be pushed to the cusp of the cusp, making consumers confused and ignoring which type of reading and writing table lamps are purchased.
In order to grasp the quality status of reading and writing table lamp products, and to provide consumers with more scientific and fair product quality information, from December 2016 to February 2017, Shanghai Quality and Technical Supervision Bureau commissioned Shanghai Times Lighting Lighting Testing Co., Ltd. The company evaluated the performance indicators of the table lamp products for market reading and writing, and also commissioned the Shanghai Lighting Industry Association to evaluate the test results.
This time, we collected a total of 45 batches of samples for reading and writing table lamps, and did not pay attention to whether the company claimed. The performance of the product was evaluated using a uniform standard method, including photobiosafety, scintillation, illumination and illumination uniformity, and color rendering index.
On March 20, 2017, Shanghai Quality and Technical Supervision Bureau announced the results of the 2017 Shanghai reading and writing table lamp product quality evaluation.
On March 31, 2017, the “In-depth Interpretation Conference on the Test Results of Main Quality Indicators for Shanghai Reading and Writing Table Lamps†held by Shanghai Lighting Industry Association was held in Shanghai Lighting City, Municipal Quality Supervision Bureau, News Media, Manufacturing. Representatives from merchants, sellers, consumers, and testing organizations attended the conference.
The conference was hosted by Huang Zhenduo, Secretary General of Shanghai Lighting Industry Association. The deputy general manager of Shanghai Times Light Lighting Appliance Testing Co., Ltd., the professor-level senior engineer Yang Lan, the distribution photometric testing group leader Liu Lei, and the Shangzhao Association Secretary-General Huang Zhenduo explained for everyone. The performance index test results of the reading and writing table lamp products, the sampling test procedures and the evaluation of the results.
The product has collected a total of 45 batches of sample lamps, covering the main brands in the high, middle and low-end markets, all of which rank top in sales. There are 18 batches of table lamps with a price of 100 yuan, 16 batches of 100-200 yuan table lamps, 8 batches of 200-500 yuan table lamps, and 3 batches of table lamps with 500 yuan or more.
In the 45 batches of samples purchased in this evaluation, the product mark, manual or webpage promotion page contains “learningâ€, “writingâ€, “readingâ€, “eye protectionâ€, “comfortâ€, “no stroboscopicâ€, “ "Health", "Running Eyes" and other similar claims. Shanghai Times Light Inspection Co., Ltd. uses a unified standard method to evaluate the performance of the product, including photobiosafety, flicker, illumination and illumination uniformity and color rendering index.
The test results are as follows:
(1) Photobiosafety
GB/T 20145-2006 "Photobiosafety of Lamps and Lamp Systems" specifies the photobiosafety hazard levels and measurement methods for lamps. After testing, 45 batches of samples met the photobiosafety requirements of the standard. Among them, the photochemical UV hazard levels of the 10 batches of fluorescent lamp table samples were all non-hazardous; the retinal blue light hazard level of the 26 batches of LED table lamp samples was not dangerous. The other 9 batches of LED desk lamp samples are low-risk (Blu-ray Class 1). When these lamps are used, the direct-view light source does not exceed 100 seconds and will not cause retinal blue light damage.
(two) flashing
All light sources that use AC power will produce flicker (known as stroboscopic), so there is no real "no stroboscopic" table lamp product. Since the flicker of the light source may have a negative impact on the health of the user, IEEE Std 1789:2015 "IEEE Recommended High-Light LEDs Reduce User Health Risk Modulation Current Method" recommends measurement methods and specifies parameters that can be safely used. range. Of the 45 batches tested in this test, 41 batches of samples did not exceed the low risk of detection.
(3) Illumination and illumination uniformity
The national standard GB/T 9473-2008 "Reading and writing work table lamp performance requirements" grading requirements for illumination and illumination uniformity of table lamps used for reading and writing lighting. Of the 45 batches tested, 1 batch reached the AA level and 12 batches met the A grade.
(4) General color rendering index
The national standard GB/T 9473-2008 "Reading and writing operation table lamp performance requirements" shall not be less than 82 for the color rendering index of the reading and writing table lamp. Of the 45 batches tested, 29 had a color rendering index greater than or equal to 82, of which 22 were LED table lamps and 7 were fluorescent table lamps.
Consumption tips
1. From the perspective of protecting eyesight, it is recommended to select products with illuminance and illuminance uniformity indicators to achieve Class A or AA grade;
2. When purchasing the desk lamp, you should check the performance parameters of the desk lamp, and you can ask the merchant to provide a test report of a fair third party;
3. When reading and writing with the desk lamp, you should open other lamps in the room at the same time to create a comfortable light space environment, avoiding the strong local lighting method.
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