4000 W Inverter generator

4000 W Inverter generator

Output wave form: Pure sine wave output (THD<3%)
Power ON-OFF switch
Thermo control cooling fan
Two-color indicators display power and fault status
Max efficiency to 92.5%
Topology: Microprocessor
Low battery voltage, over battery voltage, lack-voltage alarm.
Protections:short circuit, overload, over temperature.
Approvals:CE mark / EMC / LVD/ RoHS

Product Details


Model No. SKP-4000W
Input DC voltage 12V 24V 48V
No load current draw <2.5A
Voltage range 10.8~15VDC 21~30VDC 41~56VDC
Efficiency 88%~92%
DC connector Cables with Clips or Car Adapter
Output AC voltage  110V±10% / 220V±10%
Rated power 4000W
Peak power 8000W
Waveform(THD) Pure sine wave (<3%)
Frequency 60Hz±0.3% / 50Hz±0.3%
Protection Low voltage alarm 10.2~10.8VDC 20.4VDC 40.8VDC
Low voltage shut down 9.5VDC 19.5VDC 38.5VDC
Over voltage shut down 15.5VDC 30.5VDC 61.2VDC
Over load Shut Off Output
Over thermal Shut Off Output Automatically
Fuses Short Circuit
Environment Working temperature   -10℃~+50℃
Working humidity 10%~90% RH
Storage temperature   -20℃~+50℃
Package Machine size 435*199*146mm
Packing size 490*270*215mm
N.W 9.7kg
G.W 11.8kg
Others Start Soft Start
Cooling ways Cooling Fan



Packaging & Delivery

Packaging Details

Power Inverter Packing: 
1. Color box 
2. Designed according to client's requirement 
3. Five years expertise in manufacturing and export.

Delivery Time

5 to 7 days after payment

Company Information

SINO-K is a professional high-tech manufacturer that integrates R&D, manufacturing and marketing of energy electronic series products,including DC-DC Power Converters,DC-AC Power Inverters, and Custermized services.The headquarters is located in Shenzhen. Shenzhen production workshop area of 850 square meters, and, in inland city, the production base with 6900 square meters.Our professional technicians and senior engineers with more than 10 years of energy product research and development, production management experience.


Our service

(1) The warranty period is start from the date of shipment which show on the bill of loading or air waybill.

(2) Free maintenance services during the warranty period the cost involved be borne by the company, do not charge a fee to customers, free warranty if any damage outside the warranty period, the company will charge a fee for labor costs and materials.

(3) the warranty period, company's quality problems caused by the maintenance of the freight borne by the company, if not under warranty or man-made damage, the freight charges by the customer.





Q1: 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.


Q2: What should be noticed when installing inverter?
A: Put the product in a place where is well ventilate,cool, dry and water-proof. Do not stress or put foreign objects into the inverter. Remember to turn on the inverter before turn on the appliance.


Q3: Can I get some samples for test? 

A: Yes, sample order is available for quality check and market test . 


Q4: Do you accept OEM/ODM ?

A:Yes, we accept OEM/ODM with your authorization.


Q5: How is delivery time? 

A: Generally it takes 5-10 days for regular type , for big quantity or OEM/ODM orders, pls negotiate with sales.


Q6: What’s your payment terms? 



Q7: What’s your warranty time? 

A: We offer 12 months warranty service, life time technique support.


Q8: How does your factory do the quality control? 

A: Quality is our culture. We have strict quality control department to supervise each link from assembling to shipping.


Q9: How can I trust you ? 

A: Kaimin has 12 years’ experience in producing inverters, we have passed ISO9001 management system and got CE, CCC certificates. Assessment reports can be sent anytime if you require.

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