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Voltage Regulators/Stabilizers

LED Digital Switching DC Power Supply Voltage Regulators Lab Repair Tool Adjustable NPS-306W 110/220V Power Source

5.0 (7 votes) Store: Fanjin Store
US $44.72
US $74.53 -40%

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Money Back Guarantee Refund in 15 Days


Item specifics

  • Brand Name: VBESTLIFE
  • Usage: Other
  • Model Number: DC Regulated Power Supply
  • Phase: Single Phase
  • Current Type: DC
  • is_customized: No
  • Item: power supply adjustable
  • Feature: power regulator 220v
  • Feature 1: regulated dc power supply
  • Feature 2: regulator power supply
  • Feature 3: fonte ajustavel
  • Feature 4: fonte regulavel
  • Feature 6: regulated dc power supply
Product Description



LED Digital Switching DC Power Supply Voltage Regulators Lab Repair Tool Adjustable NPS-306W 110/220V Power Source




1. This allows a continuous transition from constant current to constant pressure mode in response to changes in load.
2. The data display shows voltage, current, and power, and the readings are clear and accurate, and very intuitive.
3. In constant voltage mode, a recalculated output voltage is provided. As the load increases, the output voltage remains constant until the preset current limit is reached.
4. Small size, light weight, high power density, the efficiency of the whole machine is up to 70%.
5. Support voltage and current output to 0, easy to use, suitable for laboratory, school and other places. 

Item Type: DC Power Supply
Material: Plastic
Plug Type: EU Plug 220V, US Plug 110V, AU Plug 220V (Optional)
Weight: Approx. 1503g / 53oz
Operation Environment: Indoor Use, Altitude Up To 2000m
Installation Category: II
Pollution Degree: 2
Operation Temperature & Humidity: 0℃ To 40℃, <80%
Storage Temperature & Humidity: -10℃ To 70℃, <70%

Constant Voltage Operation:
1. Output Voltage range from 0 to rating voltage with continuous adjustment 
2. Voltage regulation
Line regulation≤ 5mV
Load regulation≤ 5mV
3. Recovery time ≤500μs(50% Load change,minimum liad 0.5A)
4. Ripple & Noise ≤ 5mVrms ,100mVp-p
5. Temperature coefficient ≤ 100ppm/℃

Voltage Operation Mode:
1. Set power swtich to "OFF" position
2. Make sure that line voltage is correct for the input power voltage 
3. Plug power cord into the power outlet
4. Set power switch to "ON" position
5. Adjust "Voltage" and "Current" control to the desired output voltage and current
6. Connect the external load to the output binding posts .Make sure both "+" and "-" terminals are connected correctly

Setting Current Limit:
1. Determine the maximum safe current for the device to be powered
2. Temporarily short the (+) and (-) terminals of the power supply together with a test lead
3. Rotate the COARSE VOLTAGE control away from 0 sufficiently to have the constant current indicator lightened
4. Adjust the CURRENT control for the desired current limit .read the current value on the Ammeter
5. The current limit (overload protection) has now been preset.Do not change the CURRENT control setting after this step
6. Remove the short between the (+) and (-)terminals and hook up for constant voltage operation
Package List:
1 x DC Power Supply 
1 x Instruction
1 x Power Cable
1 x Power Test Cable


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2) Payment must be made within 3 days of order.

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About shipping

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 times may vary, particularly during the holiday season.
6. If you have not received your shipment within the period,  please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.

8. We seller are not in charge of import duty, buyer is responsible for that. Any dispute caused by this is unreasonable.

9. BR buyer please provide the cpf or cnpj, it will be better for you to get it more quickly. thanks

Return and Refund

1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. 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 po#.
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.

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