Affiliation:
1. Ogarev Mordovia State University
2. Russian Technological University (MIREA - RTU)
Abstract
The paper analyzes the results of comparative studies of the lighting characteristics of retrofit LED lamps of the A60 form factor from various manufacturers: Uniel (Russia - China), JazzWay (Russia - China), Philips (Netherlands), Ecola (Russia), Wolta (Germany). During the test period of lamps up to 6,000 hours, the following lighting characteristics were measured: luminous flux, power consumption, pulsation coefficient. The lamps were tested for 6,000 hours of burning at mains voltage of 220 V. The lamps were turned off 4 times a day and turned on again no less than 15 minutes after being turned off. Measurements of the lighting characteristics of the lamps were carried out after 0, 1,000, 2,000, 3,000, 4,000, 6,000 hours of burning. The position of the lamps during the tests is with the base up. The test results show that the measured value of the initial luminous flux of all retrofit LED lamps corresponds to the declared one; a high value of the lumen maintenance after 6,000 hours of burning among retrofit LED lamps has been shown by Uniel LED 10W 4000K (94.5 %), Philips Essential LED 9W 6500K (96.2 %), Wolta LX 12W 3000K (95.3 %), for lamps JazzWay PLED-SP 10W 5000K and Ecola Classic LED 10.2W 4000K lumen maintenance is less than 90 %. According to the test results, only for the Uniel LED 10W 4000K lamp, the measured values of lighting characteristics and pulsation coefficient, including after 6,000 hours of burning, correspond to the declared ones. With a low pulsation coefficient of 2.3 % for this lamp, the lumen maintenance after 6,000 hours is 94.5 %, which corresponds to lumen maintenance code 9 according to state standard (GOST IEC 62612-2019).
Publisher
FSEI HPE Murmansk State Technical University
Subject
Materials Science (miscellaneous)
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