12 volt 20 amp pwm solar charge controller with usb

Products series:

Land Dream Series:

• Land dream series is designed by 8bits CPU,common positive with LCD display.
• The latest charging technologies, combined with a new state of charge determination which has been significantly improved once again
• It can be used in solar home system, traffic signal, solar light system,etc.

Features: 

• Automatic identification system voltage, 12v/24v auto recognition
• Humanized LCD displaying and double button operation of man-machine interface
• Completed technical data for setup and modify
• High efficiency interlligent PWM 3 stage charging
• The load control mode can be selected, the timer function can be reset for street light at night
• Discharge capacity control
• RS485 communication interface(optional)
• Discharge counter of Ampere hour
• Working storage function: record the total run time of system, record timers of error during running time, record times of full charged battery
• Reliable over voltage protection, short circuit protection, over load protection, overcharge protection over-discharge protection
• Accurate terperature compenstion, correcting the charging and discharging voltage automatically, improving the battery lifetime
• Roundly reverse connected protection
• Solar panels, battery, solar charge controller positive poles are all connected together, adopting negative MOSFET in series control circuit

 Technical parameters: 

 

Protection:

• Overcharge protection
• Deep discharge protection
• Reverse polarity production of module, load and battery
• Automatic electronic fuse
• Short circuit protection of load and module
• open circuit protection without battery
• Reverse current protection at night
• Overload protection
• Battery overvoltage shutdowm

Appearance Design:

1,All series products have high quality LCD screen displays;  Quality controlled assembly process to insure reliability, Large user-friendly screen that is easy to read and understand

2,Concave backboard design to prevent overheating 

3,Well engineered packaging to reduce shipping damage 

why choose us?

Wuhan Welead S&T Co.,Ltd, head office in Hong Kong established in 2009.Our production and export base is in located Economic and Technological Development Zone Wuhan China. We're professional solar charge controller and solar lighting system manufacture and exporter, we specialize in manufacturing and supplying PWM solar charge controller and solar lighting systems registered brand is LDSOLAR.

As standard supplier we use newest test specification EN61000-6-1:2007 EN61000-6-3:2007 +A1:2011 of solar charge controllers and adopt quality management system of ISO9001 of internal and external control.We guarantee you our products' high quality, on time delivery and satisfying after service. We actively seek mutual cooperation in business and technology, advocating OEM and ODM projects or do the agency. 

Expecting to meet you on  Kenya International Trade Fair,  Intersolar Europe,  SNEC PV POWER EXPO,  Canton Fair etc..

Q1. Are you a factory or trading company?
Yes, we are factory, Supplying OEM/ODM service
Q2. Can you accept OEM service?
Yes, we can. QTY is not the only standard, more qty, less cost.
Q3. How about your payment terms?
We accept T/T, western Union, Money gram,L/C
Q4. What certification do you have ?
1. CE, ROHS
2. We can accept the certification or report if you have big order
Q5. What's your port of shipping ?
Wuhan,Shanghai, Ningbo, Guangzhou
Q6. What's your delivery time?
Around 3-15 working days upon receipts of payment
Q7.How about the warranty?
24 months; 36 months for agent and vip customer
Q8. What's your MOQ?
Sample order, no MOQ limit; From second order, at least 50pcs per model