4.5V LED display switching power supply
The Rong-Electric MDH200H4.5 is rated for 4.5V DC output at 40A. Its 200–240VAC input specification should be checked against the installation supply before purchase, especially when replacing a unit with a similar model name.
Technical specifications
| Parameter | Specification |
|---|---|
| DC output | 4.5V / 40A |
| AC input | 200–240VAC |
| Input frequency | 50/60Hz |
| Maximum input current | 3.0A |
| Cooling | Ventilation cooling |
| Protection | Input undervoltage, overload and short-circuit protection |
Check voltage and mechanical fit
Confirm the connected LED module voltage, load current, terminal positions and mounting clearance. This model’s listed input range does not include 110V AC. Leave adequate ventilation around the unit and follow the supplied installation instructions.
Product photos
Frequently asked questions
What is the output of the MDH200H4.5?
Its listed DC output is 4.5V at 40A.
Does this power supply support 110V AC input?
No. The listed input is 200–240VAC at 50/60Hz.
What does the 3.0A specification mean?
It is the maximum AC input current, not the DC output current. The output current rating is 40A.
How is the unit cooled?
The listed cooling method is ventilation cooling. Check clearance and airflow when fitting it into a display cabinet.
Is MDH200H4.5 interchangeable with MDH200PC4.5?
Do not assume so from the similar name. Check input voltage, exact model suffix, terminals, dimensions and the installation requirements of the unit being replaced.
