840W Power Converter With Waterproof Function

840W Power Converter With Waterproof Function

Size DC DC Features
Constant voltage design
SMT Process
Non-Isolated Module
2:1 wide input range
Built-in EMI filter, low ripple noise
100% full load burn-in test
Certificates :CE

Product Details

Product Description



Quick Details

Place of Origin: Guangdong,China

Brand Name:Sino-k

Model Number:12V-28V-30A

Output rated power: 840 Watts

Output Type: Single

Machine size:150*127*63mm


Input Voltage: 12V

Output Voltage:28V

Type:DC/DC Converters

Output Current:30 Amps

Operating Temperature:-40℃ ~ +80℃

Warranty:1 Year

Converter Feature

Constant voltage design

SMT process

Non-isolated Module

2:1 wide input range

Built-in EMI filter,low ripple noise

100% full load burn-in test


Waterproof level:IP 68

Protections:Short circuit/Over load/Voltage/Automatic recovery work

Ultra compact size,light weight,high reliability

1 year warranty,lifetime up to 100,000 hours




Input rated voltage12V DC 
Input voltage range10-25V DC 
Efficiency97%(half load);96%(full load) 

Output voltage

28V DC 
Output current30 Amps 
Output rated power840 Watts 
Output peak power130% 
Voltage regulation< 1% 
Load regulation< 2% 
Ripple(fill load test) <200 mV
No-load current<30 mA 
Working temperature-40°c~+80°c 
Waterproof rating IP 68
Machine size 150*127*63mm
Package size228*146*92mm 
Cooling wayFree air convection 
OtherWhite box packing 


Packaging & Shipping

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

Our Services

OEM service can be offered


  • Terms and Service


1.Trade terms:FOB



2.Payment terms:T/T ,Western Union,paypal.



3.MOQ:1pcs,sample order is also available


  •  Shipping Service


We can arrange you transportations or use your forwarder.



             Warranty:1 year

Company Information




Contact us








Q1.Are you a factory?

A1.Yes.Our factory and sales department are locatd in shenzhen and we would be pleased to welcome you in our factory at any time when you are in shenzhen.



Q2.All products have a warranty?

A2.yes.All products are at least 1 year warranty.



Q3.What is the shipping way?

A3.DHL,UPS,TNT,EMS,FedEx,Ship by sea.



Q4.What is the payment method?

A4.We normally require a T/T advance payment.30% deposit and 70% before shipping.Western Union/Money/Gram/Alibaba can also be used.


Q5.Can we design packing?

A5.Yes.You can design your own packing.


Q6.Can we add our logo on products?

A6.Yes,You can add your logo on products.


Q7.Can we customize product?



Q8.Are there some optional function for your inverter?

A8.Yes.It have battery priority function,grid priority function,AC grid charger function,AVR function,RS232 interface telecommmunication function.Solar system inverter mostly use battery priority function,AC grid

charger function,it can  make full use of solar power.




                                                            With us,your business in safe,your money in safe!



                         We also can supply OEM service,design customer's LOGO on the color box,MOQ200Pcs per model.

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