Longi Hi-MO X10LR8-66HVDF 645W Solar Panel

Short Description:

Guardian Anti-Dust Design: Specialized anti-dust frame design to reduce dust accumulation and maximize power generation.
Industry-Leading Efficiency: Max module efficiency of 24.80%, delivering higher power output per square meter.
Superior Power Degradation: Only 1% first-year degradation and 0.35% annual degradation from year 2 to 30.
Better Temperature Coefficient: -0.26%/℃ Pmax, ensuring higher power generation in high-temperature environments.
Bifacial Dual-Glass Design: Up to 75±5% bifaciality, capturing rear-side irradiation to significantly reduce LCOE.
Enhanced Mechanical Load: Certified to withstand 5400 Pa front and 2400 Pa rear static loads, plus 25mm hailstone impact at 23m/s.
IP68 Junction Box: Three diodes for superior protection and reliability.

Item	Specification
Brand / Series	LONGi / Hi-MO X10 Guardian (Anti-Dust)
Model	LR8-66HVDF
Power Range	640W – 670W
Module Dimensions	2382 × 1134 × 30 mm
Weight	32.5 kg
Max Mechanical Load	Front 5400Pa / Rear 2400Pa

Electrical Characteristics (STC)

Module Type	Pmax(W)	Voc(V)	Isc(A)	Vmp(V)	Imp(A)	Eff(%)
LR8-66HVDF-640M	640	49.52	16.38	40.78	15.69	23.69
LR8-66HVDF-655M	655	49.82	16.62	41.08	15.94	24.25
LR8-66HVDF-670M	670	50.12	16.86	41.38	16.19	24.80

Rear Side Power Gain

Pmax(W)	Voc(V)	Isc(A)	Pmax Gain
645	49.62	16.46	0%
710	49.62	18.11	10%
808	49.72	20.58	25%

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Product Detail

Product Tags

Introducing the LONGi Hi-MO X10 Guardian LR8-66HVDF, an ultra-high efficiency N-type bifacial dual-glass solar module delivering 640W to 670W of power. It features an innovative Anti-Dust frame design to minimize soiling losses, making it ideal for harsh environments. Boasting an industry-leading maximum module efficiency of 24.80% and an outstanding degradation profile (1% first year, ≤0.35% annual thereafter), it ensures maximum yield. With a superior temperature coefficient (-0.26%/℃) and bifaciality of up to 75±5%, it maximizes energy generation. Built with a robust dual-glass structure, anodized aluminum frame, and IP68 junction box, this 132-cell (6×22) module is certified for extreme mechanical loads (5400 Pa front / 2400 Pa rear), making it the ultimate choice for commercial and utility-scale solar projects.