Features:
1. Using single-chip microcomputer and special software; special software based on expert control system is adopted, which realizes intelligent optimization SOC control.
2. Temperature compensation adopts the external temperature sensor, which is more accurate than built-in humidity sensor.
3. With overcharge, over-discharge, electronic short circuit, overload protection and unique anti-reserve protection; none of the above protections will damage any parts, and do not burn insurance.
4. Tandem PWM charging main circuit makes voltage loss of the charging circuit decrease nearly half of that of diode charging circuit. And the charging efficiency is 3%-6% higher than non PWM, increasing using time, enabling a longer system service life. It also has high precision temperature compensation.
5. The obvious LED light tube indicates the current state of the battery, so that user can understand the working condition.
6. Industrial-grade control chip to ensure normal operation in cold, high temperature and humid environment; the crystal vibration timing control is used to ensure timing precision.
7.LED digital tube display setting, an one-button operation can complete all settings;
8. Using advanced power technology, the effective power of unit area is greatly improved and the structure is more compact.
9. Built-in super strong voltage correction program ensures the accuracy of voltage at all levels and controls the correctness of charging and discharging process.
10. Half power regulating function makes the lamps and lanterns can be transferred to work to half power energy saving state, greatly reducing the load of energy consumption and extending the time of normal system work.
11. With constant current output function, it can directly drive LED load, and constant output current can be adjusted with load power. Changing conventional LED light source needs adding constant current source; more convenient installation, reserving more space.
12. With large diameter and large spacing terminals, it can be installed with the maximum 6mm conductor with a 9.5mm interval distance, which enhances insulation performance and installation reliability, and is not easy to slide.

Specifications:
Product name: CMY-2420 12/24V 20A USB LCD Display Solar Regulator Charge Controller
Product model: CMY-2420
Maximum charging current: 20A
Maximum discharging current: 20A
Rated voltage: 12V/ 24V, automatic adjustment
Stop charge pressure: 14.7V; 29.4V
Undervoltage recovery voltage: 12.2V; 24.4V
Undervoltage protection voltage: 10.5V; 21.0V
USB output voltage/current: 5V/ 2A
No-load loss: ≤ 10mA;
Temperature compensation: -3mV/cell/ ℃
Working temperature: -20~ 60℃

1 X Solar Power Regulator Charge Controller
1 X User Manual
1 X Pacakge

1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit time may vary, particularly during the holiday season.
6. If you have not received your order after 30 days from payment, please contact us. We will trace your order and get back to you asap. Our goal is customer satisfaction!
7. Delivery Time:

1. You have 7 days to contact us and 30 days to return it from the date received. If the item is in your possession more than 7 days, it will be considered used and WE WILL NOT ISSUE A REFUND OR REPLACEMENT to you. There are NO EXCEPTIONS!
Shipping cost is bear by both seller and buyer in half.
2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your order ID.
3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to have a replacement.
4. We will bear all the shipping cost if the product(s) is (are) not as advertised.

1. 12 months Manufacturer’s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN
EXPIRED WARRANTY.
You agree to all of the above-listed policies upon ordering on aliexpress!

We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can perform up your satisfaction.
It is impossible to address issues if we do not know about them!