20A 300W High Power Synchronous Rectification Power Supply Step-down Module (60x53x30mm)


R221

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Overview

1. Module properties: synchronous rectification non-isolated buck constant current constant voltage module CC CV charging module
2. Scope of application: high-power LED constant current drive, lithium battery charging (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, nickel-cadmium nickel-metal hydride battery (battery pack) charging, solar panels, wind turbines
3. Input voltage: 6-40VDC
4. Output voltage: continuously adjustable (1.2-35VDC) below 32V for a long time (applicable to applications where the input voltage is higher than the output voltage and cannot be boosted)
5. Output current: maximum 20A, long-term within 15A (please add a fan to dissipate heat when the power tube temperature exceeds 65 degrees, and use a reduced rating for high voltage output)
6. Current limiting range: 0.2-20A (adjustment) please add a fan if the module exceeds 65 degrees
7. Low voltage difference: 3V
8. Operating frequency: 150KHZ
9. Conversion efficiency: about 96% high, efficiency is related to voltage difference and use environment
10. Output ripple: ripple about 50mV (excluding noise) 20M bandwidth (for reference only) input 24V measured
11. Working temperature: -10 to +75 degrees Celsius (please pay attention to the power tube temperature in actual use, if the temperature is too high, please increase heat dissipation or use it at a reduced rating)
12. Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease)
13. Output short circuit protection: yes (instantaneous protection) constant current (the current constant current value cannot be short-circuited for a long time)
14. Input reverse connection protection: no
15. Output anti-reverse current: no, for loads with self-power or inductive loads, an external diode is required!
16. Wiring method: Wiring terminal
17. Size: 60x53x30mm
18. Weight: about 85 grams
Output current adjustment method:
1. Adjust the CV potentiometer to set the output voltage to the voltage value you need according to your load requirements
2. Set the CC potentiometer counterclockwise for about 30 turns (that is, set the output current to a small value), connect the LED, and adjust the CC potentiometer to the current you need. For battery charging, discharge the battery, then connect it to the output, and adjust CC to the current you need (when used for charging, you must use a discharged battery to adjust it accurately, because the more power left in the battery, the smaller the charging current)

Additional Information

Weight & Size

Weight: 0.104kg
Size: 7cm x 7cm x 6cm

SKU: A0100001819 Category: Condition: New

Delivery Options

We deliver straight to your home or office anywhere in South Africa.

  • Courier Delivery with a cost of R75 on all orders.

Additional Charges

There are no extra fees or additional charges for shipping and delivering your order.

Processing, Handling & Delivery Timeframes

Once your order is placed, the following timelines apply:

  • Order Cut-Off Time: 2:00PM (SAST)
  • Handling Time: 1 – 2 business days (Monday – Friday)
  • Transit Time: 5 – 7 business days (Monday – Friday) within South Africa.
  • Total Delivery Time: 6 – 9 business days (Monday – Friday) within South Africa.

Note: Business days are Monday to Friday, excluding weekends and public holidays.

Shipping Locations

We only deliver within South Africa.

Shipping Carriers

We utilize the following couriers for order deliveries:

Order Tracking

Once your order is dispatched, you’ll receive an email with your delivery details and a tracking number. You can also track your order on our Track Your Order page.

Damages & Issues

Please inspect your order upon delivery. If you notice any damage, incorrect items, or missing products, check them in the presence of the courier and please Contact Us immediately. We’ll resolve the issue as quickly as possible.

Lost Orders

We guarantee the delivery of all orders. If your package is lost, stolen, or damaged, we will either send a replacement or issue a full refund.

Order Cancellations

You can cancel your order at any stage during the handling, shipping and delivery process. Please Contact Us if you need to cancel your order, and we’ll be happy to assist you.

Order Modifications

You can modify or amend your order items before they are dispatched. Please Contact Us if you need to change anything on your order, and we’ll assist you.

Delivery Delays

While rare, delays can sometimes occur, particularly in remote areas. If your delivery takes longer than expected, please Contact Us, and we’ll assist you.

Failed Deliveries

If no one is available to receive your package at the delivery address, we’ll notify you of the failed attempt. We’ll then work to reschedule the delivery within 24-48 hours.

Changing Your Delivery Address

If you need to update your delivery address due to a mistake or change, simply reply to your order confirmation email with the correct details, or please Contact Us for assistance.

Overview

We offer a 365-days Return and Refund Policy, meaning you have 365 days from your date of purchase to request a return.

We want you to love your purchase! If you’re not completely satisfied, you can return the product for a repair, replacement, exchange, store credit, or refund.

Return Eligibility

To qualify for a return, your product must meet these conditions:

  • Items must be in its original packaging.
  • Items that was delivered defective, damaged, incorrect and missing parts due to errors not of your own.
  • Items must be unused, undamaged, complete and not missing parts unless due to our error.
  • Or used and/or unused items that are still within the warranty and guarantee period.
  • You must provide proof of purchase.

How to Start a Return

To request a return, please Contact Us or submit a return request here or you can log a warranty claim request here. Once your return is approved, we’ll send you a return shipping label and instructions. Items returned without prior approval won’t be accepted.

Damages & Issues

Please inspect your order upon delivery. If you notice any damage, incorrect items, or missing products, check them in the presence of the courier and please Contact Us immediately. We’ll resolve the issue as quickly as possible.

Exchanges

To exchange an item, you’ll need to return the original product first. Once your return is approved, you can place a new order for the item you want.

Return Costs

All returns are free! We’ll arrange a courier to collect the item at no cost to you.

Restocking Fees

We do not charge restocking fees.

Lost Orders

We guarantee the delivery of all orders. If your package is lost, stolen, or damaged, we will either send a replacement or issue a full refund.

Order Cancellations

You can cancel your order at any stage during the handling, shipping and delivery process. Please Contact Us if you need to cancel your order, and we’ll be happy to assist you.

Warranty and Guarantee

We want you to shop with confidence, which is why our products are covered by a 365 days Warranty and Guarantee.

All our products come with a minimum 365 days warranty and guarantee.

If you discover a defect within the first half of the warranty and guarantee period from the purchase date (as shown on your proof of purchase), we will gladly repair, replace, issue store credit, or provide a full refund.

For defects identified after the first half and within the second half of the warranty and guarantee period, we are happy to repair or replace the product.

You can log a warranty claim request here. Need assistance with a warranty claim? Contact Us for support and more details.

Additional Information:

All warranty claims go through an approval process handled by either Yoink and/or the manufacturer.

Please note that we do not cross-ship. This means we will only process returns once the defective product has been received, inspected, and approved for repair, replacement, store credit, or refund.

Warranty coverage will be void if:

  • The product has been opened, tampered with, or altered.
  • The serial number, manufacturer model, part number, or warranty sticker is missing, damaged, altered, or unreadable.
  • The defect is due to wear and tear or physical damage.
  • If a certified professional did not install it – (Depending on the nature of the product, eg. electronic components and/or repair parts).

For any further information, please Contact Us.

Refunds

Once we receive and inspect your return, we’ll notify you about the approval status. If approved, your refund will be processed to your original payment method within 10 business days. Please note that banks and credit card providers may take additional time to process the refund.

If more than 10 business days have passed since your refund was approved and you have not received your refund as of yet, please Contact Us.