Pack of 3 Step Down Converter, QIQIAZI DC-DC Buck Converter Module, DC Converter Voltage Regulator, Buck Converter for 4-40V to 3.3-24V with 3-Digit Digital Display
$29.62
- $9.99 shipping from Germany View details
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- High precision: DC-DC buck converter with adjustable voltage and integrated voltmeter. Voltmeter Accuracy: ±0.1V Input voltage: 4.0-40V; Output voltage: 1.25-37V Note: For input voltages below 4V, the voltmeter does not work and does not display values.
- Safe protection: the step down converter offers low power consumption and high efficiency. Equipped with overheating and short circuit protection. Additional cooling is recommended for powers above 15W. Built-in reverse polarity protection prevents damage caused by incorrect connection.
- Adjustable step-down converter: With an internal oscillation frequency of 150 kHz and high-quality solid state capacitors, the buck converter ensures stability and durability. Effective filtering of high frequency noise for reliable voltage regulation.
- Important note: Before first use, turn the potentiometer counterclockwise more than 10 times. Step down converter switch between input and output voltage with the button next to the voltmeter. Green LED light shows output voltage, red LED light shows input voltage.
- Versatile applications: step down converter is ideal for voltage reduction projects where the input voltage is higher than the output voltage. Applications include batteries, transformers, DIY power supplies, vehicle power adapters (e.g. B. 24 V to 12 V), industrial voltage adjustments and much more.
- Free 30-Day Returns
- Full Refund for Damaged or Incorrect Items
- Guaranteed Delivery or Money Back
- Secure Checkout & Fast Support
- High precision: DC-DC buck converter with adjustable voltage and integrated voltmeter. Voltmeter Accuracy: ±0.1V Input voltage: 4.0-40V; Output voltage: 1.25-37V Note: For input voltages below 4V, the voltmeter does not work and does not display values.
- Safe protection: the step down converter offers low power consumption and high efficiency. Equipped with overheating and short circuit protection. Additional cooling is recommended for powers above 15W. Built-in reverse polarity protection prevents damage caused by incorrect connection.
- Adjustable step-down converter: With an internal oscillation frequency of 150 kHz and high-quality solid state capacitors, the buck converter ensures stability and durability. Effective filtering of high frequency noise for reliable voltage regulation.
- Important note: Before first use, turn the potentiometer counterclockwise more than 10 times. Step down converter switch between input and output voltage with the button next to the voltmeter. Green LED light shows output voltage, red LED light shows input voltage.
- Versatile applications: step down converter is ideal for voltage reduction projects where the input voltage is higher than the output voltage. Applications include batteries, transformers, DIY power supplies, vehicle power adapters (e.g. B. 24 V to 12 V), industrial voltage adjustments and much more.
Input voltage: DC 4.0 ~ 40 V.
Output voltage: 1.25 V ~ 37 V (infinitely adjustable, the input voltage must be at least 1.5 V higher than the output voltage).
Output current: 2A (stable), 3A maximum.
● Efficiency: up to 92%.
Output rib: <30mV.
Switching frequency: 150 kHz.
Operating temperature: -45°C ~ +85°C.
● Protection functions: reverse polarity protection, overheating protection and short circuit protection.
Connection instructions:
● IN+: Connect this to the positive pole of the input source.
● IN-: Connect this to the negative pole of the input source.
● OUT+: Connect this to the positive pole of the output source.
● Out: Connect this to the negative pole of the output source.
Digital Voltmeter Calibration:
(Optional for users who need high-precision voltage measurement)
1. Short press the left button "ON/OFF" to activate the digital voltmeter. Press the button longer (>1s, <4s) to disable it.
2. Press and hold the left button (>4 seconds) to start the self-calibration of the voltmeter (calibration range: -0.5 V to +0.5 V, factory setting: 0.0 V). The "IN" indicator lights up = calibration of the input voltage begins.
3. Press and hold the right button "Mode" (>2 seconds) to start the calibration of the output voltage (""OUT" indicator lights). Use the left/right button to adjust the values in small steps (approx. 0.1 V).
4. After calibration, press the right button "Mode" (> 2 seconds) to save the changes. The setting remains even after a power failure.
Applications:
This step-down converter is suitable for applications where the input voltage is higher than the output voltage. Examples: batteries, transformers, DIY power supplies, 24V notebook power adapters, industrial voltage converters, conversions such as 12V to 3.3V, 12V to 5V, 24V to 5V, 24V to 12V, 36V to 24V and more.
Processing Time
- We process and ship orders Monday through Friday, excluding holidays.
- Most orders are processed within 1–3 business days, depending on product availability.
- Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.
Shipping Coverage
We currently ship to addresses within the United States only.
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Each product page clearly displays the “Ships From” location before checkout.
Shipping Methods & Estimated Delivery
| Shipping Method | Estimated Delivery | Cost |
|---|---|---|
| Free Shipping (US) | 5–10 business days | Free, available on eligible items |
| Standard Shipping (US to US by Item) | 5–10 business days | $5.95 for the first item, $3.00 each additional |
| Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb. |
| Extended Delivery (Ships from Overseas Warehouse) | 10–20 business days | $14.99 for the first item, $2.00 each additional |
Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.
Free Shipping
We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout.
Carriers
We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.
Import Duties & Taxes
All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.
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You can track your shipment anytime using the Track Your Order page on our website.
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If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.
Contact: support@ibspot.com
Item Not Received
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If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.
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Email: support@ibspot.com
We’re always happy to help.
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We aim to ensure every customer has a smooth and transparent experience with ibspot.com.
Order Cancellation Policy
Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.
How to Request a Cancellation
You can contact us through:
- Email: support@ibspot.com
- Contact Form: Submit a request through our Contact Us page
Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.
Return Policy
We accept returns for most items within 30 days of delivery for a full refund.
To be eligible for a return:
- The item must be unused, in the same condition as received, and in its original packaging.
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Non-Returnable Items
Certain products cannot be returned, including:
- Perishable goods (for example, food, flowers, newspapers, magazines)
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Partial Refunds (If Applicable)
Partial refunds may be granted in specific situations, such as:
- Books with obvious signs of use
- Opened CDs, DVDs, software, or vinyl records
- Items not in their original condition, damaged, or missing parts not due to our error
- Items returned more than 30 days after delivery
How to Return an Item
To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.
Shipping Cost for Returns
Please contact us before returning any item.
We may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.
If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.
If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.
For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.
Refund Processing
Once your return is received and inspected:
- In-store returns are refunded to the original form of payment or issued as a gift card.
- Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.
Please allow:
- 5–7 business days for the return to reach our Returns Center.
- An additional 3–10 business days for your bank to post the refund to your account.
Damages, Issues & Claims
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Product Claims
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If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.
Exchanges
We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.
Return Address
IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States
Customer Support
Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.
Email: support@ibspot.com
Contact Form: Contact Us page
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