S-120-24S 100W 24V 5A SMALL LED Switching Power Supply AC 110V/220V Transform

S-120-24S 120W 24V 5A LED SMALL Switching Power Supply AC 110V/220V Transformer
 
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The S-120-24 is a universal 120W, 24V DC, 5A regulated switching power supply commonly used for LED strip lights, CCTV cameras, industrial automation, and 3D printers. It converts standard AC mains (100-240V) into a stable, direct current (DC) output. 
 
Core Specifications
Input Voltage: Universal AC 100-240V (50/60Hz)
Output Voltage: DC 24V (adjustable via a built-in trim pot by ± 5%)
Rated Current: 5A (Maximum)
Rated Power: 120W
Cooling: Free air convection via aluminum vented casing (no noisy internal fans)
Protection Features: Short-circuit, overload, and over-voltage protection 
 
Terminal Wiring Layout
The power supply features screw-down terminals. Proper wiring is essential for safety:
L (Live): Connects to the brown or black wire from your AC wall plug.
N (Neutral): Connects to the blue or white wire from your AC wall plug.
\(\equiv \) (Ground): Connects to the green or yellow/green earth/ground wire. Do not skip this connection.
-V / COM: DC Negative output (connects to the black/negative wire of your LED strip).
+V: DC Positive output (connects to the red/positive wire of your LED strip).
ADJ: Voltage adjust potentiometer. Use a small screwdriver to fine-tune the 24V output if experiencing voltage drop over long wire runs. 
 
Best Practices & Tips
Load Rating: It is highly recommended to run the power supply at roughly 80% of its maximum capacity (under 4A) to prolong its lifespan and prevent overheating. 
Environment: Unless enclosed in a waterproof box, this unit is rated for indoor use only due to the exposed terminals and vented metal case. 
Heat: Ensure adequate airflow around the aluminum casing. 
 
Item Specifics
Model: S-120-24
Type: Switching Power Supply
Input Voltage: AC 100-240V, 50/60Hz
Output Voltage: DC 24V
Output Current: 5A
Output Power: 120W
Housing Material: Metal Case
Protection Features: Overload Protection, Over Voltage Protection, Short Circuit Protection
Cooling Method: Natural Air Convection
Application: LED Lighting, CCTV Systems, Industrial Equipment, Automation Projects