4X DC Stabilized Constant Current Power Supply Module Buck-boost Adjustable Regulator

$22.99
  Availability: In Stock
  Shipping: Free Airmail 
  Estimated Delivery: 
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    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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Specification:

Name: Buck-boost adjustable regulator
Model: 4X
Input voltage: 5.5-30V
Output voltage: 0.5-30V
Voltage display resolution: 0.05V
Dimensions: 66*48*21mm
Output current: less than 4A
Current display resolution: 0.005A
Output power: 35W
Weight: 46g
Working frequency: 180KHz

Package included:

1 x  Power Supply Module

Introduction to Functions:

1. The module has two buttons IN/OUTQN/OFF: IN/OUT button switches the display of input voltage and output voltage, long press can switch output current and output power display; ON/OFF button controls output ON or OFF, long press can set The default output state is ON or OFF at the second power-on.
2. CC is the current setting potentiometer. Turn clockwise to increase the set current. When the load current reaches the set current, it enters the constant current state, and the CC constant current indicator (red) lights up; the CV on the right is the voltage setting The potentiometer, rotating clockwise, can increase the output voltage. The ON indicator light is an output status indicator light, which lights up when there is voltage at the output terminal, otherwise it goes off.



NOTE:

1. Module input IN- must not be short-circuited with output OUT-, otherwise the constant current function will fail.
2. Please make sure that the power of the power supply is always greater than the power required by the output load!
3. If the module wants to output at full load, the input voltage must be above 8V. When the input voltage is 5V, the output power will be about 15W, and the voltage and current meter will fail. The current value of the module is 4A, provided that it is limited by the rated output power, for example, when the output is 17V, the current should not be greater than 2A.
4. The module is equipped with output short-circuit protection. After the short-circuit protection, the module will automatically turn off the output and re-power on the module to restore it. If your power supply does not have output current limiting protection, it is recommended to connect a fuse in series in front of the module input.
5. The module has an input under-voltage protection function. The default is about 4.7V. When the value is lower than this value, the output will be automatically disconnected, and the module will be re-powered to recover (note the voltage at the module port, when the input current is relatively large Don’t ignore the voltage divider on the input wire).


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