MQ200PC4.5B 180 W LED display power supply
The Rong-Electric MQ200PC4.5B powers LED display loads requiring 4.5 V DC. The linked manufacturer specification lists a 0–40 A output-current range and 180 W output rating, with input undervoltage, output current limiting and short-circuit protection.
Technical specifications
| Parameter | Specification |
|---|---|
| Output power | 180 W |
| Rated DC output | +4.5 V |
| Output current | 0–40 A |
| Output voltage range | 4.408–4.6 Vdc |
| Rated AC input | 100–240 Vac |
| Operating AC input range | 90–264 Vac |
| Input frequency | 47–63 Hz |
| Maximum input current | ≤4 A |
| Efficiency | ≥87.0% at 220 Vac, full load, room temperature |
| Power factor | ≥0.95 at full load |
| Regulation accuracy | ±2% |
| Ripple and noise | ≤150 mVp-p under the PDF’s measurement conditions |
| Operating temperature | −30 to +50°C |
| Cooling | Ventilation cooling |
| Dimensions | 190 × 83 × 30 mm |
| Weight | 758 g |
Check voltage before selecting a replacement
The original page table showed +5.0 V and an input figure of 160–264 with a DC unit. The exact-model PDF instead consistently specifies +4.5 V DC output and 100–240 Vac rated input, with a 90–264 Vac operating range. The table above follows that identified document. Confirm the supplied unit’s nameplate and revision before connection; do not select this model as a 5 V replacement solely from the old listing.
For high-temperature burn-in, the PDF calls for an auxiliary heat-dissipation plate no smaller than 200 × 300 × 3 mm. Check mounting, ventilation and load conditions against the full document. For a purchase or replacement inquiry, provide the complete MQ200PC4.5B model, required quantity and a photo of the existing nameplate.
Product images
Download specification
MQ200PC4.5B Rong-Electric led Power Supply Specification
Frequently asked questions
Is the MQ200PC4.5B a 4.5 V or 5 V power supply?
The manufacturer V1.0 specification identifies it as +4.5 V DC. The original web table’s +5.0 V entry conflicts with that document, so confirm the unit nameplate and use the correct voltage for your LED modules.
What is its output power and current?
The exact-model PDF lists 180 W and an output-current range of 0–40 A at 4.5 V DC.
What AC input does the MQ200PC4.5B require?
The linked specification gives 100–240 Vac rated input, a 90–264 Vac operating range and 47–63 Hz input frequency.
How do I confirm the price for the correct replacement?
Use the product’s current purchase options or request a quotation with the full MQ200PC4.5B model and quantity. Include the old unit’s nameplate so the voltage and revision can be checked.
Where are the dimensions and wiring details?
The original PDF linked above lists 190 × 83 × 30 mm dimensions and provides connector assignments, mounting information and heat-dissipation requirements.
