HLG-320H-C - 320 W LED driver with current stabilization. Free Technical Library News

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HLG-320H-C - 320W LED driver with current stabilization

24.01.2017

Mean Well has expanded its popular HLG family of outdoor LED power supplies with the new HLG-320 series with 320W output.

A feature of the new HLG-320 series is an increased output power with current stabilization, i.e., these are sources with a high-voltage output for powering serial LED strings with a current in the range from 700 to 3500 mA.

Power supplies have increased efficiency (at least 94%) and high reliability (manufacturer's warranty 7 years). The HLG-320 provides a wide range of lighting control options. The product line includes models with dimming (HLG-320CB) 3-in-1 (PWM, 0-10V, resistance), as well as models with DALI protocol control and models with programmable output parameters (Smart Timer Dimming) .

Power supplies of the HLG-320 series are designed for powerful industrial high-suspension luminaires, for lighting streets, highways, greenhouses and greenhouses.

Main technical parameters:

Output power 320W
Output current from range: 700, 1050, 1400, 1750, 2100, 2800, 3500 mA
Efficiency not less than 94%
KM not less than 0,95
Temperature range -40°С...+85°С
IP65 / 67
Dimensions (LxWxH) 252 x 90 x 43,8 mm
Manufacturer's warranty 7 years

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Friends take the pain away 10.05.2016

Endorphins, or endogenous morphines, which are synthesized by brain neurons, help to overcome pain and stress, and also affect the emotional state.

For example, some feeling of elation and happiness that comes to us after exercise arises from the fact that overstressed muscles begin to hurt, and the brain tries to anesthetize them with the help of endorphins, which at the same time give joy. (Although it is worth clarifying that the very feeling of euphoria is born from the complex interaction of different systems of neurotransmitters, and it is definitely not worth writing off everything here on endorphins.)

On the other hand, animal and human studies have shown that endorphin levels are associated with socialization - roughly speaking, their levels are higher the more and the better we communicate with others. This suggests the conclusion that friendship can literally be painkillers.

According to the experiments of Katerina V.-A. Johnson and Robin IM Dunbar of the University of Oxford, this is indeed the case. Psychologists invited 101 people to the laboratory and asked them to perform the following exercise: lean against the wall, half squatting down, so that there was a right angle at the knees. It is quite difficult to be in such a position, so soon the muscles begin to ache due to tension.

Those with the widest social circle endured the longest. Of course, here we can say that some people were probably just physically stronger, but the researchers separately clarify that the ability to maintain the above posture with physical fitness did not coincide in any way.

Along the way, it was found that those who were generally in better physical shape did not have as extensive social ties as those of weaker comrades in the experiment. It is possible that someone who is involved in fitness or sports simply does not have time for extensive communication, or that he receives so many endorphins from exercise that he may well make do with fewer friends.

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