Recently, "industrial" lamps began to appear in grocery stores (okay, tape, etc.) . I deliberately did not indicate the brand in the title, they differ only in the inscription on the lamp, even the price tag is about the same.
There are 20W or more - but they all have one thing in common, it's better not to buy them , they are very light and cost reasonable money, up to 600r.
Of course, we are promised 300 hours of 30,000 hours of operation, no ripple, and some manufacturers claim industrial use of these lamps, but we will return to this later.
We are promised: 40W, CG 4000k, luminous flux 3200lm ( http://ecola.ru/catalogue60.html )
In practice: a lamp is built on a bp2865g chip , has an active power of ~ 36W, but PF (cosf) ~ 0.52 , i.e. we get a consumption of ~ 55Va, we immediately recall the Lamptest article (with a lamp power of more than 20W, PF (cosf)> 0.9).
A few pictures from the thermal imager, the lamp works for 7 minutes, the body warmed up to only 80 degrees.
Removing the diffuser, the smell of baked electrolytes, cheap plastic, and unwashed flux hit my nose.
Turn on the lamp again and let it run for 2 minutes.
After another couple of minutes of operation (without a diffuser).
2 , , 5 - .
21 , 2 (), 2 21 . - 2: 400 4,8 105 , .
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- , : +2 .
- ( ). 120000 230000, .
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... , , 250 , 250 - 350, , - 250.
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On this, we can say that the plan for the transition to a bright future, within the framework of the work of one management company, has been fulfilled.
Taking into account the scale of the use of artificial lighting and the energy resources expended for these purposes, the new requirements for energy efficiency will improve the quality of lighting in various areas, reduce energy consumption for lighting and reduce the negative impact on the environment.
https://minenergo.gov.ru/node/9858