







🔌 Power up smart, stay ahead of the curve!
The JESSINIE ZK-4KX is a high-precision DC-DC buck-boost converter offering adjustable 0.5-30V output and up to 4A current with enhanced heat dissipation. Featuring a detailed LCD display for real-time monitoring and multiple customizable protection mechanisms, it’s ideal for DIY solar charging, LED driving, and battery management applications. Compact and reliable, it ensures efficient, safe, and versatile power conversion for professional-grade projects.






| ASIN | B0B7MBNP4G |
| Best Sellers Rank | #144,578 in Electronics ( See Top 100 in Electronics ) #1,508 in International Power Adapters |
| Brand | JESSINIE |
| Color | grey,silver,blue |
| Colour | grey,silver,blue |
| Customer Reviews | 4.3 out of 5 stars 21 Reviews |
| Input Voltage | 30 Volts |
| Input voltage | 30 Volts |
| Item Type Name | Power Converter |
| Item Weight | 0.07 Kilograms |
| Item weight | 0.07 Kilograms |
| Manufacturer | JESSINIE |
| Model Number | ZK-4KX |
| Output Voltage | 30 Volts |
| Output voltage | 30 Volts |
C**E
Displays the voltage and amp draw
W**R
Loudspeaker amp turn on/ run Bluetooth adapter
J**Z
EXCELENTE
P**G
Compact, useful and low-cost
E**E
Nice unit at a good price
Trustpilot
1 week ago
2 weeks ago