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DROK 12V Power Supply, AC 110V 220V to DC 0-12V 0-40A 480W Buck Converter, Volt Amp Adjustable Adapter Regulated 5V 9V 12Volt Switching Voltage LED Transformer Charger for Computer CCTV Lab
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 27, 2026 6:25 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The listed retail price is trimmed by 13% at checkout.
- 📉No lower price has surfaced in the past twelve months, making this one of the standout deals in recent memory.
- 📈Prices have been moving higher lately — waiting risks paying more if that momentum continues.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
5.21/22
Market Standing
5.33/20
Deal Strength
16/20
Momentum
0/10
📝 Product Overview
🚚 Shipping
Free Shipping
Product Details
✓【Volt Amp Adjustment】 Input Voltage can be 110V or 220V. Wide adjustable output Voltage range: DC 0-12V. This supply is suitable for 2V 3V 5V 6V 9V 12V devices. The voltage precision is 0.1V. Note——The maximum current is 40A. But the ouput current can be adjusted by the potentiometer. No matter how many voltage is adjusted, the max current should not be higher than 40A. It can be used to device of 5A 10A 12A 24A 36V 40A. Make sure to use the devices which is below 40A.
✓【Hareware】 This Buck Converter is equipped with LED screen, heat sink and cooling fan. The LED screen can clearly display the output voltage and output current. Heat sink and cooling fan can control the temperature in a safe range. During the running power is high, the cooling fan will automatically activate with little noise.
✓【Easy Operation】 This supply is no need to install, after connecting wire, it can be used to adjust output, which is convenient. The potentiometer is inset into the supply. Only to rotate the potentiometer can adjust output parameter.
✓【Protection】 Over Load Protection, Over Voltage Protection, Short Circuit Protection, which can protect your device from damage. Note: the default input voltage is 220V, before using, please switching the input voltage to 110V/220V according to your city voltage.
✓【Wide Application】 This power supply has variable application. It can be used as a 2V 3V 5V 9V 12V power supply for RV, Car, Labtop, Computer, Lab, CCTV, etc. All of our item has 1 year long time warranty guarantee.
⚙️ Specifications
Brand
DROK
Power Source
Corded Electric
Current Rating
40 Amps
Specification Met
FCC, UL
Manufacturer
DROK
Package Dimensions
9.69 x 5.67 x 2.72 inches
Item Weight
1.95 pounds
ASIN
B0B18MZZPB
Item model number
20050
Customer Reviews
3.8
Best Sellers Rank
See Top 100 in Tools & Home Improvement
