LONGi Hi-MO 5 LR4-72HPH-545M (545 W)
The LONGi Hi-MO 5 LR4-72HPH-545M is a 545 W solar module built on Mono PERC technology (Monocrystalline PERC (Passivated Emitter Rear Cell)). It delivers a maximum-power voltage (Vmp) of 41.7 V at a maximum-power current (Imp) of 13.07 A, with an open-circuit voltage (Voc) of 49.5 V and a short-circuit current (Isc) of 13.9 A under Standard Test Conditions (1000 W/m², 25 °C, AM1.5G). Conversion efficiency is 21.3% across a 2256 x 1134 mm footprint.
Electrical Specifications
| Specification | Value |
|---|---|
| Rated Power (Pmax) | 545 W |
| Voltage at Pmax (Vmp) | 41.7 V |
| Current at Pmax (Imp) | 13.07 A |
| Open-Circuit Voltage (Voc) | 49.5 V |
| Short-Circuit Current (Isc) | 13.9 A |
| Module Efficiency | 21.3% |
| Technology | Mono PERC |
Mechanical Specifications
| Specification | Value |
|---|---|
| Length | 2256 mm |
| Width | 1134 mm |
| Area | 2.56 m² |
| Power Density | 212.9 W/m² |
Technology & Performance Notes
Mono PERC is a workhorse mainstream technology with excellent bankability and low $/W. At 21.3% module efficiency the LONGi Hi-MO 5 LR4-72HPH-545M converts 21.3% of incident solar irradiance into DC electricity, putting it in the mainstream efficiency tier for its class. The 212.9 W/m² power density determines how many watts fit on a given roof or field area.
String Sizing & System Notes
When wiring the LONGi Hi-MO 5 LR4-72HPH-545M into a string:
- Keep the string Voc (temperature-corrected to the coldest expected cell temperature) below the inverter’s maximum DC input voltage.
- Keep the string operating Vmp within the inverter’s MPPT window across the expected temperature range.
- Size fusing and conductors against Isc (13.9 A) with the standard 1.25x safety factor.
Frequently Asked Questions
How many watts is the LONGi Hi-MO 5 LR4-72HPH-545M?
It is rated at 545 W under Standard Test Conditions.
What is the efficiency of the LONGi Hi-MO 5 LR4-72HPH-545M?
21.3% module conversion efficiency.
What are the dimensions of the LONGi Hi-MO 5 LR4-72HPH-545M?
2256 x 1134 mm (2.56 m²).
What technology does the LONGi Hi-MO 5 LR4-72HPH-545M use?
Mono PERC (Monocrystalline PERC (Passivated Emitter Rear Cell)).
What is the Vmp and Imp of the LONGi Hi-MO 5 LR4-72HPH-545M?
Vmp is 41.7 V and Imp is 13.07 A.