LONGi Hi-MO X10 — LR7-72HVD-650M

Key Specifications

Back-contact (HPBC) cells — 24.1% module efficiency, no visible front busbars
70±5% bifaciality — extra yield from reflected light on suitable installations
Low temperature coefficient (-0.26%/°C) for hot-climate performance
Dual-glass construction, IP68 junction box, -40°C to +85°C rated
15-year product / 30-year linear performance warranty

The LR7-72HVD-650M belongs to LONGi's Hi-MO X10 generation, the manufacturer's flagship line built around back-contact (HPBC) cell technology. Moving the front-side busbars to the rear of the cell removes shading losses from metal grid lines, which is the main reason this module reaches 24.1% module efficiency — a meaningful step above standard PERC and many TOPCon panels of the same physical size.

Its dual-glass construction (two 2.0 mm semi-tempered glass panes, 2.0+2.0 mm) gives the module 70±5% bifaciality, meaning the rear surface can add a real, measurable energy gain when installed with adequate ground clearance and reflective ground cover — particularly useful on flat commercial roofs and carports where reflected light is abundant.

Electrically, the module is rated 650 W at STC with an open-circuit voltage of 54.22 V and a temperature coefficient of only -0.26%/°C, so it retains more of its rated output on hot rooftops than older cell technologies typically manage.

LONGi backs the module with a 15-year product warranty and a 30-year linear performance warranty, and it is rated for a -40°C to +85°C operating range with an IP68 junction box — specifications aimed at long-term outdoor reliability, not just headline wattage.

Key Specifications

Power Output: 650 W
Module Efficiency: 24.1%
Cell Technology: HPBC (back-contact)
Open-Circuit Voltage (Voc): 54.22 V
Short-Circuit Current (Isc): 15.14 A
Voltage at Max Power (Vmp): 44.87 V
Current at Max Power (Imp): 14.49 A
Bifaciality: 70±5%
Temperature Coefficient (Pmax): -0.26%/°C
Temperature Coefficient (Voc): -0.20%/°C
Temperature Coefficient (Isc): +0.05%/°C
Dimensions: 2382x1134x30 mm
Weight: 33.5 kg
Front Static Load Rating: 5400 Pa
Rear Static Load Rating: 2400 Pa
Max. System Voltage (DC): 1500 V
Max. Series Fuse Rating: 30 A
Product Warranty: 15 years
Performance Warranty: 30 years

Specifications are taken from the manufacturers' published datasheets (Deye, LONGi, JinkoSolar, LuxpowerTek) and may be updated by the manufacturer without notice.