We are testing an inexpensive industrial LED lamp TL-PROM-50-5K with honest features
Testing in the lighting laboratory of the industrial LED lamp TL-PROM 50 with a power of 50 watts provided by Glavsvet. On the official website glavsvet.su you can get advice and find out more detailed specifications. I write only honest reviews, protecting the rights of buyers. Therefore, samples are sent only by bona fide manufacturers who have nothing to hide from their customers.Parameters
The full name of the LED industrial lamp TL-PROM-50-5K (D), which corresponds to a power of 50W and a color temperature of 5000K. The body is made of anodized aluminum, IP67 moisture protection. Used branded LEDs Osram DURIS S5 GW PSLT33.PM with the optimal ratio of characteristics and quality.The manufacturer provides for the deviation of the luminous flux from the declared ± 5%. You should also consider the error of the measuring instruments.The standard mount provides for placement on the ceiling, wall and suspension. Additionally, it can be equipped with a bracket for mounting on a wall and adjusting the angle of inclination ± 90 degrees.
The lineup
The model range consists of 7 basic modifications, which differ in power, light flux and size. Color temperature 4000K and 5000K. Daylight neutral white light corresponds to a value of 5000K, for incandescent lamps, warm light at 2700K-2900K.
Power
Measurement results of electric power and power factor.The minimum operating voltage without reducing the brightness turned out to be 129 volts.
Light flow
Light flow is measured after full warm-up in 1 hour. When heated, the brightness of the LEDs decreases, when cold, the industrial LED lamp will illuminate better. The efficiency of the sample is 127 lumens per 1 watt, this is the best indicator.A transparent layer of protective polycarbonate traps 10-11% of the light. If the efficiency of the lumen / watt lamp is higher, then the price of LEDs increases significantly.The luminous flux was 5% higher than declared, which fits into the 5% deviation, which is declared by the manufacturer.
Heat
Within 60 minutes, the sample warms up at an air temperature in the laboratory of 22 degrees. To obtain objective results on the heating of the LEDs and the housing, a thermocouple device and infrared pyrometers were also used.
At a low temperature (for example -5 degrees) outdoors or indoors, the temperature of the LED diodes and the case will decrease. The decrease will be approximately equal to the difference in the current air temperature and the laboratory value of 22 degrees. Accordingly, the decrease will be by 27 °.
The difference of 9 ° indicates a high-quality contact of the LEDs with the cooling system. In low-quality LED fixtures, the difference is up to 20 ° -30 °. Low heat maximizes service life, they work in ideal conditions for them.
Spectrum and color temperature
The most optimal color temperature is 5000K. In low light, the sensitivity of the eye in white light increases, so 5000K will illuminate better. Color rendering at 70 CRI decently reduces the cost of the Osram DURIS S5 LEDs. For residential premises, this indicator under the regulation should be at least 80 CRI.The measurement results are within the error of the measuring devices and correspond to the characteristics declared by the manufacturer.Where can I buy?
You can get advice and purchase an industrial lamp from the official distributor, Glavsvet company http://www.glavsvet.su/svetilnik-tl-prom-50-5k-d/Summary
The tested industrial luminaire fully complies with the declared parameters. A high-quality cooling system keeps the temperature of the LEDs low, which significantly increases the service life and facilitates the operation mode.
Author: Sergey Kazantsev
Samples tested in the lighting laboratory, official site led-obzor.ruTesting LED lamps for the home, LED strips, lamps, spotlights. Automobile LED lamps, halogen and xenon, fog lights, daytime running lights, LED lenses. I use low-beam headlights, xenon and halogen lenses, fog lights.Source: https://habr.com/ru/post/undefined/
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