| Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram,PayPal; | Supply Ability: | 4000 Piece/Pieces per Month; |
| Packaging Detail: | 2 pieces in one carton paper carton/ plastic pallet, as your request; | Color: | Blue; |
| Place of Origin: | Zhejiang China; | Certificate: | CE ROHS E8; |
| Brand Name: | solarvertech; | Application: | off grid system; |
| Rated Power: | 4000w; | Product name: | 4000W Pure sine wave inerter Solar Inverter; |
| Model Number: | NK4000; | OEM: | Accept OEM; |
| wave form: | pure sine wave; | Peaking power: | 8000W; |
| Efficiency: | 95%; | Input voltage: | DC 24V; |
| Port: | NINGBO/SHANGHAI; |

| MODEL | ------ | ------ | ------ | NK4000-212 | NK4000-224 | ------ | |
| Output | Rated Power | 4000W | |||||
| Surge Power | Load 120~150%(3min.);12000W(3sec.;resistive) | ||||||
| Waveform | Pure Sine Wave(THD<3%) | ||||||
| USB port | ------ | ------ | ------ | 5V 2.1A | 5V 2.1A | ------ | |
| Remote controller | CR80/CRW80/CRD80 optional | ||||||
| Dip switcher | A. Frequency 50/60Hz set | ||||||
| B. Energy save mode: equipped with 3-stage sleeping mode adjusted by dip switch. | |||||||
| Input | DC Voltage | ------ | ------ | ------ | 12VDC | 24VDC | ------ |
| Voltage Range | ------ | ------ | ------ | 10.5~15VDC | 21~30VDC | ------ | |
| Efficiency(Typ.) | 89%~93% | ||||||
| Protection | BAT.Low Alarm | ------ | ------ | ------ | 10.5±0.5VDC | 21±1.0VDC | ------ |
| BAT.LOW Shutdown | ------ | ------ | ------ | 10±0.5VDC | 20±1.0VDC | ------ | |
| Over Load | Shut down output voltage, restart to recover | ||||||
| Over Voltage | ------ | ------ | ------ | 15.5±0.5VDC | 31±1.0VDC | ------ | |
| Over Temperature | Shut down output voltage, recover automatically after temperature goes down | ||||||
| Output Short | Shut down output voltage, restart to recover | ||||||
| DC Input Reverse Polarity | By fuse | ||||||
| Earth Fault | Shut off o/p when the load has electrical leakage | ||||||



1.Q:Do you have your own factory?
A:Yes, we are professional manufacturer mainly in power inverter for many years. Our facory is located in Jiaxing, Zhejiang, China.
2.Q:What kind of certification you have?
A:ISO9001,CE,ROHS and so on.
Our products could pass different labor testing according to different countries' requirements.
3.Q:Where we can use the system?
A:You can use the system for home, for power station, for lighting system and so on, wnere the grid power is expensive.
4.Q:How about your warranty?
A: We provide 1.5 and 3 years warranty for different products and whole life technical support.
5.Q:Competitive Price
A:All of our products are produced by our own factory. So the price is very copetitive.
6.Q:How to do the installation?
A: This portable solar system installation is very simple, only need to connect solar panel with controller, and push ON/OFF button, then it will start to work.
7.Q:24-hours online service
A: Please feel free to contact us. Our sales team will provide you with 24 hours better pre-sale.