LED power supply | modular | 12V | 120W

LED power supply - choose the right one for Your project.

LED power supply parameters 12V DC and 120W headroom for demanding loads. The modular, ventilated build eases wiring and cabinet installs. Typical uses include indoor LED strips, display cases and furniture lighting, and low-voltage electronics. It brings stable output, low ripple, and premium build quality.

Protections built into the led power supply

• Over-voltage protection (OVP) shields LEDs from spikes.
• Over-current protection (OCP) prevents overload damage.
• Short-circuit protection (SCP) auto-recovers after faults.
• Over-temperature protection (OTP) limits heat-related failures.
• EMI filtering and, where applicable, active PFC for cleaner power.

When to use power injection

Long LED strips drop voltage along the run. Brightness fades and colors shift. Use power injection by feeding 12V at multiple points. Plan feeds every 5 m for 12 V tape, or sooner at high power. Calculate current, size cables properly, and ground all returns. Combine this with a 12v 120w power supply to keep uniform light across every segment.

Sizing your power supply

Sum the LED load and add a 20–30% margin. This protects lifespan and thermal performance. Match polarity, check ambient temperature, and allow airflow. For sealed installs, derate output. Use the modular led psu only where it adds value, and pick certified units for safety.

FAQ

Q: Can I run several strips in parallel?
A: Yes, if total current stays within the limit and each branch is fused.

Q: Why does my strip dim at the end?
A: Voltage drop. Add power injection and use thicker supply cables.

Choose cables with low resistance, avoid sharp bends, and double-check polarity before power-up. Test sections incrementally to catch wiring errors early.

Ready to build? Order today for premium performance and dependable light.

Look also at our: LED strips | Other LED Power Supplies | LED Drivers & Controllers