Testing Polish LED Spectrum Led E27
Today we are testing in the laboratory LED lamps with E27 base for 7 and 10 watts. Samples were provided by the official distributor of the Spectrum LED trademark in Russia, LLC TSC Teplomarket. Bulbs imported from Europe.Characteristics
Spectrum LED
lamps with E27 base are in the mid-price range. In retail, 85-86 rubles are sold, in connection with the start of sales, the price is reduced by 30% to 65-66 rubles.The table shows the characteristics from the manufacturer.
About Brand
In 2019, LED bulbs of the Spectrum LED trademark, which belongs to the Polish company Wojnarowscy, first appeared in Russia. The company started in 1990 as a supplier of lighting equipment for factories, railways, mines and medical institutions.The products undergo a two-stage quality control, the first stage is carried out by the company's specialists at the manufacturing plants, and each batch is re-checked in its own laboratory in Poland.Equipment
List of used devices:- thermal imager: Seek Thermal Compact PRO
- Photometric Scope: SpectraLight DiY-05
- power meter: Robiton PM-3M
- spectrometer: UPRtek MK350
- Light meter: Radex Lupin
All devices are tested and configured in certified lighting and electrical laboratories.
Power
The power measurement results are presented in the table. The measured energy consumption is lower than the declared by 14% and 15%, which is undoubtedly a plus. But it is necessary to take into account a small variation in parameters during production, on average, it may be declared 7 and 10 watts.
Light flow
Spectrum LED lamps are preheated for 1 hour until performance stabilizes. When LEDs are heated, the luminous flux can decrease from 5% to 15%, this is one of the features of their operation. Both samples showed good results, the brightness in a stable mode after heating is much higher than stated. For a 7W model, the number of lumens is 18% higher; for a 10W model, it is 5% higher.There are practically no pulsations in the light flux, the indicator is within the error of the measuring device. We can assume that a decent power supply (driver) is used, which copes well with the power of the LEDs.Heat
The thermal imager measures the heating of the LEDs and the housing, which is used as a cooling system. The aluminum casing is coated on top with thermally conductive plastic.A good indicator is the temperature of the LEDs up to 100 degrees. This favorably affects the life of the LED lamps.
The maximum heating temperature of modern LEDs used in conventional lamps is 120-125 degrees. In the specifications of the highest quality LEDs, the maximum heating temperature is in the range of 140-150 degrees.The LEDs of the Spectrum LED bulbs during testing showed a temperature of 84 to 96 degrees, that is, they work in a comfortable temperature range, which means you can expect a long service life.Color Temperature and Color Rendering
Both tested LED lamps have a color temperature of 3000K, like incandescent lamps. In the specifications, the color rendering index is> 80 Ra. The measurement results confirm this value, which was Ra 81. For use in residential premises, a minimum of Ra 80 is required.
Packaging
The packaging is made of glossy cardboard, pictograms and generally accepted signs are used to indicate characteristics, explanations are provided in all European languages.
Summary
The measurement results showed:- energy consumption is lower than the declared by 14% and 15%, which is a plus- the actual luminous flux is higher than the declared by 5 and 15%, which is also a plus and is quite rare- the color rendering coefficient corresponds to that declared by the manufacturer, the bulbs can be used in residential the premises.- LED heating does not exceed the recommended 100 ° C, which promises a long service life, so the seller guarantees replacement within 2 years from the date of sale.Where can I buy?
You can buy Spectrum LED lamps with E27 base in Yandex Market and in the online store of the official distributor of TSC Teplomarket LLC, which provided samples.
Author: Sergey Kazantsev
Samples tested in the lighting laboratory, official website led-obzor.ruI have been working since 2015. I am testing LED lamps for the home, LED strips, lamps, spotlights. I am testing GOST automotive LED lamps, halogen and xenon, fog lights, daytime running lights, LED lenses. I use low-beam headlights, xenon and halogen lenses, fog lights.Appeal to the audience. Before you get upset and ask questions, try reading the material carefully. Half of the questions arise due to what is read inattentively.Source: https://habr.com/ru/post/undefined/
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