MQ300PC5H power supply for LED walls and sign boards
The Rong-Electric MQ300PC5H supplies +5 V DC to compatible LED wall or sign-board modules. Its documented output is 300 W with a 0–60 A current range. The original product photograph below shows the housing and terminal arrangement; use the specification drawing to verify mounting dimensions and connections.
Technical specifications
| Parameter | Specification |
|---|---|
| Output power | 300 W |
| Rated output | +5.0 Vdc; 0–60 A |
| Output voltage range | 4.90–5.1 Vdc |
| AC input range | 160–264 Vac |
| Input frequency | 50/60 Hz |
| Maximum input current | ≤4.0 A |
| Efficiency | ≥88% at 220 Vac, full load and room temperature |
| Power factor | ≥0.95 at full load |
| Regulation accuracy | ±2% |
| Ripple and noise | ≤200 mVp-p under the PDF’s full-load measurement conditions |
| Operating temperature | −30 to +60°C, subject to the operating-temperature derating curve |
| Cooling | Ventilation cooling |
| Protection | Input undervoltage, output current limiting and short circuit |
Selecting a supply for your LED cabinet
Match the module’s 5 V requirement and the cabinet’s load to this model’s output rating. Confirm the AC supply at the installation site: the documented 160–264 Vac range does not include 110 V mains. The old summary table labelled its input column as DC; section 5.1.1 of the exact-model PDF specifies AC input.
Keep airflow paths clear and use the manufacturer’s derating guidance for the temperature inside the cabinet. A similar wattage or housing is not enough to establish interchangeability; compare the model suffix, connections and mounting drawing.
Product images
Download specification
Rong-Electric MQ300PC5H 5V 60A 300W Power Supply for led video wall Specification
Frequently asked questions
Can the MQ300PC5H power a 5 V LED wall?
It is designed for LED displays and supplies +5 V DC at 0–60 A, with a 300 W rating. Check the total cabinet load and the manufacturer’s derating requirements before selecting it.
Will this Rong power supply operate on 110 V mains?
No. The documented AC input range is 160–264 Vac at 50/60 Hz.
What efficiency is specified?
The V1.0 PDF specifies efficiency of at least 88% at 220 Vac, full load and room temperature. This is a stated test condition, not a fixed efficiency at every load.
Where can I see MQ300PC5H product pictures?
The original product photograph is retained above. For precise mounting and terminal information, use the mechanical drawing in the linked specification PDF.
What should I check before replacing an LED sign-board power supply?
Match output voltage, load current, AC input range, terminal assignments and mounting dimensions. Confirm the complete MQ300PC5H model rather than relying on a general 300 W description.
