Test of the Elektrostandard 12W E27 bulb

First of all, I want to start with a subjective assessment – the name of the manufacturer is beyond praise. The manufacturer is pronounced as Electrostandart, judging by the description posted on many seller sites.

Elektrostandard is a brand that appeared in 1998. The company's product catalog currently contains more than 1,200 items, and this number is constantly growing. Providing strict quality control at all stages of production, the brand guarantees electrical safety, reliability, and durability of lamps. Many large retail chains, online stores, and Internet sites cooperate with the manufacturer. Consumers choose lamps Elektrostandart for their affordable cost, stylish design, ease of installation and maintenance.

Personally, this title directly resonates inside me with the expectation of something solid and high-quality. Even German quality, because somewhere this is exactly how this sales text is rewritten.

The Elektrostandard brand is a leading German company that has been supplying quality electrical goods, lamps, outdoor lighting, sconces, spotlights, table lamps and track systems since 1998. The company's products are manufactured to the highest quality standards and supplied at an affordable price. We source the brand's products from reliable suppliers to ensure that they meet high standards. With the Elektrostandard brand, you can be sure that you are getting the best value for money. The company's products are designed to last a long time and provide reliable operation for many years.

Immediately after unpacking the lamp, all the arrogance of German quality falls away – the marking clearly states “made in China”. The beginning is interesting. But there is nothing criminal here, my expectations are just my expectations and that's it. The manufacturer is great – he uses my perception well.

Let's move on to the tests. The usual 220 volts in the network – at the first switch-on 11.7 watts. Looks like 12 watts, promised by the manufacturer.

Power factor – 0.6. And according to our GOST it should be 0.85, no less. However, we have not found a lamp that complies with the standards yet.

Expenses for the year are 180 rubles, with the lamp operating 8 hours a day and at a rate of 5.38 rubles per kilowatt.

After 15 minutes, the lamp power is 11.2 watts. The difference is about 6% between the actual power and the power indicated on the package. This is a good result.

Color temperature 3844 K out of the stated 4200 K. Color rendering index 81.

The X and Y coordinates are measured. Delta UV is 0.0028. Which is below the visibility threshold of 0.004. This means that the yellow-green tint in the white light of this lamp will not be noticed at all. The color can be considered absolutely white.

The pulsations of this lamp are not a risk, the point is in the green zone, although the pulsation coefficient is quite high, 16.09%, but the frequency is 23 kHz.

I fix the luxmeter at a distance of 1 meter from the lamp, placing it strictly perpendicular to its bulb.

In a 220 Volt network – 317 Lux is quite a lot!

250 Volts – 320 Lux.

170 Volts – 309 Lux.

70 volts and complete darkness.

The driver of this lamp copes with emergency voltage changes in the household network. The lamp can be used where the network is unstable. Somewhere outside the city such a lamp will be quite suitable.

For 11 Watts of real power, the case temperature is about 85 degrees Celsius, which is a bit much, of course, but in principle, nothing. The temperature of the bulb is about 57 degrees Celsius.

The illumination diagram was taken in a dark chamber and the luminous flux was calculated based on 10 points of measured illumination.

The luminous flux that I calculated for this lamp is 1028 lumens. And the manufacturer writes 1100 lumens.

The design is single-board, but does not look like ordinary single-board lamps. Here, well, a real honest choke is the first thing that catches the eye. And the slots, which I have not seen on LED boards disassembled earlier.

The slots are made for cooling. But whether they perform their function is a big question. But be that as it may, this is some kind of innovation. Because of these slots, they tried to isolate the LED lamp driver from the diode board, on which the LED housings are heated.

There are 13 LED housings connected in series on the board. Each housing is 2.8 by 3.5 millimeters in size. Three small crystals can be discerned under the phosphor inside each housing. But we will, of course, clarify this further.

Electrolyte installed directly on the board – 4.7 microfarads, 400 volts, up to 130 degrees Celsius. As I already said, an honest choke and a current stabilization microcircuit, inside which a diode bridge is integrated.

I determine the point of maximum heating of the diode board. I will put a thermocouple there and measure the temperature of the diode board with the diffuser removed.

The heating of the diode board is quite noticeable. The diode board heated up to about 83 degrees Celsius. And nevertheless, under the diffuser with such heating it will not exceed 100 degrees. And the lamp confirmed that the temperature conditions are acceptable for long-term operation of LEDs.

I thought it would be very interesting to move the thermocouple to the section of the diode board separated by slits and see what the temperature is here. Is it very different from the point where we have already measured it. 15 minutes have passed. The temperature at the point where I moved the thermocouple is very close to the one where I measured it initially. There is no significant effect of the slits on the diode board on the temperature distribution on it.

Cooling is the same as everywhere else – an aluminum radiator pressed into a plastic case.

My colleagues agree with me and recommend this lamp for purchase. It is surprising that this happened with a brand that plays a rather aggressive brand game, although this is my subjective opinion. Nevertheless, there are also negative assessments, justified by the high price of the lamp.