500W Pure Sine Wave Power Inverter with High Quality

Brief introduction
Wenzhou Roger Electronics Technology Co.,Ltd.,located in Wenzhou Yueqing city, the capital of Chinese Electric Apparatus. Have big advantage in the location, south to Wenzhou airport, north to National level Tourist Sports of Yandang Mountain,Ningbo-Taizhou-Wenzhou high speed road,high speed railway, very convenience to the different shipping way,no matter by sea, by road or by air.
  We are a high technology manufacturer and exporter which focus on the researching, developing, manufacturing and marketing. Our main products include mini car inverter, modified sine wave power inverter, pure sine wave power inverter, battery charger, solar charge controller, pure sine wave inverter with charger, modified sine wave inverter with charger, solar and wind system, wind-solar hybrid inverter, grid-connected inverter, DC-AC power supply etc. With international advanced researching, testing and producing equipment, domestic and overseas most excellent technical elite, good relationship in cooperation with several reach institutions and colleges, Roger enhance it's leading position in this field.
   Roger inverters are mostly used in high speed railway, normal railway control unit, carriage power supply unit, mobile operator emergency construction team, several provincial power company, college energy research institute, provincial gas extraction research institute, prefectural post office department, tax/industrial and commercial system, urban construction unit, road, tunnel maintenance etc. And export to France, Germany, America, Japan, Dubai, India, Nigeria, Singapore, Australia, Middle East etc. countries and districts and gained the approvals.
  With constant pursuit of the managing principle " leading technology, good quality, good service" ,Roger will try to be the world level new energy enterprises.

FAQ:
1,Q:Why your quotation is higher than other suppliers?
A:In domestic market, the high and low inverter brands are mixed together. There are many low-cost inverter is actually some assembled small unlicensed workshops, it crudely, to reduce costs and use of substandard components for assembly, there is a very big security risk! In order to protect the pro personal and property safety, please do not covet low 
price, be sure to choose a reliable inverter!
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2,Q:How many categories does it have according to the output waveform ?
A:Type one: Roger Modified Sine Wave inverter, which uses PWM pulse width modulation to generate modified sine wave. Due to the usage of intelligent dedicated circuit and high power field effect tube, it greatly reduces the power loss and increases the soft-start function, effectively ensuring the reliability of the inverter. If the power quality is not highly demanded,  it is able to meet the needs of most electrical equipment. But it still exists 20% harmonic distortion problems when running sophisticated equipment, can also cause high-frequency interference to radio communications equipment. This kind of inverter can meet the basic needs of most of our power, high efficiency, small noise, moderate price, and thus become the mainstream products in the market.
   Type two: Roger Pure Sine Wave inverter, which adopts isolated coupling circuit design, high efficiency, high stability of the output waveform, high-frequency technology, small in size, suitable for all kinds of load, can be connected to any common electrical devices and inductive load devices (such as refrigerators, electric drill, etc.) without any interference (eg: buzz and TV noise). The output of pure sine wave inverter is the same as the grid tie power we daily used, or even better, because it does not exist grid tie electromagnetic pollution.
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3,Q:Is the output voltage of our inverter stable ?
A:Absolutely. Our inverter is designed with a good regulator circuit. You can even check it when measuring the true value by a multimeter. Actually the output voltage is quite stable. Here we need make a especial explanation : many customers found it is unstable when using conventional multimeter to measure voltage. We can say the operation is incorrect. Ordinary multimeter can only test pure sine waveform and calculate datas.
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4,Q:What is a resistive load appliances?
A:Generally speaking, appliances like mobile phones, computers, LCD TVs, incandescents, electric fans, video broadcast,  small printers, electric mahjong machines, rice cookers etc. All belong to resistive loads. Our modified sine wave inverters can drive them successfully.
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5,Q:What is the inductive load appliances?
A:It refers to the application of electromagnetic induction's principle, produced by high-power electrical products, such as motor type, compressors, relays, fluorescent lamps, electric stove, refrigerator, air conditioner, energy saving lamps, pumps, etc. These products'power are far more than the rated power (about 3-7 times) when start. So only pure sine wave inverter is available to them.
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6,Q:What should be noticed when installing inverter?
A:Put the product in a place where is well ventilate,cool, dry and water-proof. Pls do not stress and do not put foreign objects into the inverter. Rember to turn on the inverter before turn on the appliance.