This dmx512 led decoder allows for led lights to be controlled via a dmx controller by accepting both dc supply voltage and your dmx controller signal and distributing it to attached led lights . This led decoder accepts XLR-3 type connections for the DMX signal input and output . The DMX decoder controller adopts the advanced control unit, receives standard DMX512 digital control signal and transformed it into PWM signal to driving LED. As a powerful color managing controller, it will enable you to choose the desired pattern and appropriate speed to manage your RGB LED lighting fixtures.
Photo show of PWM DMX LED Decoder:
Pwm Dmx Led Decoder,Led Decoder,Pwm Decoder,Dmx Decoder Shenzhen Iseeled Technology Co., Ltd. , https://www.iseeledlight.com
We understand under the first normally open and normally closed <br> <br> principle of the normally-open solenoid valve and the normally closed electromagnetic valve, a solenoid valve is divided into the difference between normally closed and normally open type two; refers to a normally-closed coil is not energized When the gas path is broken, the normally open finger means that the gas path is open when the coil is not energized.
Normally closed solenoid valve operation principle: the coil is energized, the gas circuit is connected, once the coil is powered off, the gas circuit will be disconnected, which is equivalent to "jogging."
Normally open solenoid valve operation principle: power to the coil, the gas circuit is disconnected, once the coil is powered off, the gas circuit will be connected, which is also "inching."
It is usually selected according to the duration of continuous operation: Normally closed, normally open, or continuously powered. 1. When the solenoid valve needs to be turned on for a long period of time, and the duration of the solenoid valve is longer, the normally open type should be selected.
2, if the opening time is short or the opening and closing time is not long, then select the normally closed type.
3, but some of the conditions for safety protection, such as furnace, kiln flame monitoring, can not be selected normally open, should be selected long-term power type.
Solenoid valves use electrical signals to regulate the flow components of various liquids and gases. A solenoid, which is activated by current, and consists of these components of the valve body activated by the solenoid. Proper solenoid operation usually requires regular maintenance, although some of these components are inexpensive, so that when they stop working, they can simply replace it.
Many factors affect the behavior of the solenoid valve. The external nature of the factor. The valve is exposed to environmental conditions that can cause premature failure or improper operation to play a large part. Unfavorable environmental conditions, such as heat or exposure to corrosive elements, often lead to drastically reduced operating life of the solenoid valve. Having a valve responsible for controlling the type of contaminants can also cause problems, such as sticking open or closed.
Environmental conditions tend to cause solenoid coil failures, but these components can also break down naturally over time. If a solenoid coil is burned, or if the helium gets stuck, the valve usually does not open properly. When the electrical connection fails, the operation of the solenoid can also be prevented, and, in turn, keeping the valve open or closed.
Several design factors are checked to help determine if the solenoid valve is subject to various internal and external pressures. This is generally considered to be the main features included with the selection, temperature and pressure rating, and the process fitting valve, compatible with the flow coefficient. The valve size is important to consider because the flow factor is too low or too high to adversely affect the operation of the solenoid valve. Media compatibility can also play a large role in the action of the solenoid valve, because an industrial mine, which is incompatible with the media passing through it, tends to fail quickly. Temperature and pressure ratings play a similar role because it is important that a solenoid valve be strong enough to withstand the conditions it is subjected to. 
What factors affect the solenoid valve operation?
What factors influence the solenoid valve operation <br> <br> what factors affect the solenoid valve operation? In fact, there are some, electromagnetic valve selection is often the most prone to selection errors, there are some different artificial and external factors will affect the operation of the solenoid valve. Some common external factors include industrial and mining environmental conditions, as well as selection errors. In terms of selection, the operating life of the solenoid valve is shortened compared with the pollutants of the unfavorable environment. Internal factors include problems with solenoids, electrical connections, normally open or normally closed, and faulty natural wear in the valve body. An industrial design specification, such as the size of the valve, can also affect the operation of the solenoid valve.