3Pcs DC-DC CC CV Buck Converter Board Step Down Power Supply Module 7-32V to 0.8-28V 9A

$22.99
  Availability: In Stock
  Shipping: Free Airmail 
  Estimated Delivery: 
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  •   Shipping Methods

    Handling Time

    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

    Shipping Methods

    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

    Delivery Time

    Airmail and Airmail Registered Area Estimated Delivery Time
    United States, Canada 7-25 business days
    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
    Italy, Brazil, Russia, South Africa 10-45 business days
    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022

    Returns

    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388
    Israel

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.

    Refunds

    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.

    Exceptions

    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.

    Questions

    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888
    sales@alexnld.com

     


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Features:
– Fixed turn lamp current is 0.1 times the current value ( Used to identify whether the battery is fully charged When charging).
– Made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current, (when 20°C to 100°C constant current 1A, temperature drift less than 1%). Particularly suitable for LED.
– High output current, the max output current can reach 8A.
– Four high frequency capacitance, can lower output ripple, enhance the work stabilization.
– Double heat sink design. MOS schottky diode independent heat sink,which heat dissipation is good,and won’t affect each other.
– Using large size Sendust Core and double pure copper wiring, improve working efficiency, reduce fever.
– 3296 multiturn potentiometer,high accuracy voltage and current regulation, good stability.
– Double color lamp, working condition be clear at a glance
– Voltage and current are adjustable,wich effect is good.
Parameters:
– Module Properties: Non-isolated step-down constant current, constant voltage module (CC CV) charging module
– Input Voltage: DC 7-32V
– Output Voltage: (1) DC 1.2-28V continuously adjustable. (2) Fixed output:Choose between 0.8v-28v
– Output Current: 8A (when power tube’s temperature exceeds 65 degrees, please add cooling fan)
– Constant Current Range: 0.2-8A (Adjustable)
– Turn Lamp Current: Constant current value * (0.1), turn the lamp current and constant value linkage, such as constant current value is 3A, turn the lamp current is set to a constant current is 0.1 times (0.1 * 3A = 0.3A)
– Lowest Pressure: 1V
– Output Power: Maximum power is about 200W
– Conversion Efficiency: Up to about 95%
– Operating Frequency: 300KHz
– Output Ripple: 20M bandwidth
– Input 24V output 12V 5A ripple around 50mV (Excluding noise)
– Output Short Circuit Protection: Yes, constant current
– Input Reverse Polarity Protection: None
– Output Prevent Backflow: None
– Wiring: Terminal
– No-Load Current: Typical 20mA (24V switch 12V)
– Load Regulation: ± 1% (Constant)
– Voltage Regulation: ± 1%
– Dynamic ResponseSpeed: 5% 200uS
– Potentiometer Adjustment Direction: clockwise (increase) , counterclockwise (decrease), the potentiometer(CV) closed to the input voltage is used to regulate voltage, the potentiometer(CC) closed to output voltage is used to regulate current (CC)
– Operating Temperature: Industrial grade (-40 °C to +85 °C) (please note the actual use of the power tube temperature , high temperature heat strengthened)
– Indicator: dual color indicator, charging indicator light is red, the green light means fully charged (No load is green)
– Size: Approx. 65 x 47 x 23.5mm/2.56 x 1.85 x 0.93”
– Precision of Constant Current and Temperature: On the actual test, the module temperature from 25 degrees to 60 degrees, the constant current value change is less than 5% (5A constant current value)
– Output Short Circuit Protection: Yes,Constant current (the current setting constant current value)
– Input Reverse Connect Protection: NO
– Output Prevent Reverse Fow: NO
– Wiring Method: Amphenol connector
Applications:
High-power LED driver
Lithium battery (or lead accumulator) charge
Vehicle-mounted power supply
Low voltage system power supply
6V, 12V, 14V, 24V battery charge
On-board laptop power supply
Regulated power supply
Low voltage power supply system
Package Includes:
3 x DC-DC Adjustable Power Supply Module

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