1. Q: According to the output waveform, how many types of inverters are there?
A: Category 1: Modified sine wave inverters, using PWM pulse width modulation to generate modified sine wave. Due to the adoption of intelligent special circuits and high-power field effect tubes, the power loss is greatly reduced and the soft-start function is added, which effectively ensures the reliability of the inverter. It can meet the needs of most electrical equipments when the requirements for power quality are not high. However, it still has the problem of 20% harmonic distortion when running precision equipment, and also causes high frequency interference to radio communication equipment. This type of inverter can satisfy the basic power needs of most of us, with high efficiency, low noise and moderate price, thus becoming the mainstream product in the market.
The second category Pure sine wave inverter, which is designed with isolated coupling circuit, high efficiency, high stability of output waveform, high frequency and low power consumption.
Output waveform, using high-frequency technology, small size, applicable to a variety of loads, can be connected to any common electrical equipment and inductive load equipment (such as motors, generators, transformers, etc.).
Inductively loaded devices (e.g. refrigerators, electric drills, etc.) without any interference (e.g. hum and TV noise). The output of a pure sine wave inverter is the same as or even better than the grid-connected power supply we use every day, as there is no grid-connected electromagnetic pollution.
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2. Q: Is the output voltage of our inverter stable?
A: Absolutely stable. Our inverter is designed with a good voltage regulator circuit. You can even measure its real value with a multimeter. In fact, the output voltage is very stable. Here is a special note: many customers find the voltage unstable when they use traditional multimeter to measure the voltage. We can say the operation is incorrect. Ordinary multimeter can only test the pure sine wave and calculate the data.
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3、Q:How long is your warranty?
The main parts of our air conditioners are guaranteed for 2 years, and the host is guaranteed for 5 years.
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4、Q:Do you support to take samples?
Yes, we support to take samples
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5、Q:What should I pay attention to when installing the air conditioner?
A: Place the product in a ventilated, cool, dry and waterproof place. Please do not put foreign objects into the air conditioner.