Hi-MO 9

Name: Hi-MO 9
Brand: LONGi

Hi-MO 9 (LR8-66HYD 635~670M)

SolarPV moduleModelled

Nominal power: 670W
Module efficiency: 24.8%
Temperature coefficient: -0.26%/°C
Annual degradation: 0.35%/year

Characteristics

5 of 5 fields · all sourced · retrieved 2026-09-02

Nominal power: 670W
Module efficiency: 24.8%
Temperature coefficient: -0.26%/°C
Annual degradation: 0.35%/year
Bifaciality factor: 75%

Hi-MO 9 is LONGi's utility-scale PV module built on TaiRay silicon wafers and HPBC 2.0 back-contact cell technology, with a 0BB design on the front. The LR8-66HYD range spans 635 W to 670 W with module efficiency up to 24.8%, in a dual-glass 132-cell (6×22) laminate measuring 2382×1134×30 mm and weighing 32.7 kg. LONGi states first-year power degradation below 1% and 0.35% per year from year 2 to 30, covered by a 12-year warranty for materials and processing and a 30-year warranty for linear power output. The module is certified to IEC 61215, IEC 61730 and UL 61730, rated for DC 1500 V maximum system voltage, and tested to 5400 Pa front-side and 2400 Pa rear-side static loading.

Manufacturer datasheet (27)

Cell orientation: 132 (6×22)
Junction box: IP68, three diodes
Glass: Dual glass, 2.0+2.0mm heat strengthened glass
Frame: Anodized aluminum alloy frame
Weight: 32.7kg
Dimension: 2382×1134×30mm
Length tolerance: ±2mm
Width tolerance: ±2mm
Packaging: 36pcs per pallet / 144pcs per 20’GP / 720pcs per 40’HC
Output cable: 4mm2, +400, -200mm/±1400mm length can be customized
Front side maximum static loading: 5400Pa
Rear side maximum static loading: 2400Pa
Hailstone test: 25mm Hailstone at the speed of 23m/s
Temperature coefficient of Isc: +0.050%/℃
Temperature coefficient of Voc: -0.200%/℃
Operational temperature: -40℃ ~ +85℃
Power output tolerance: 0 ~ 3%
First year power degradation: <1%
Maximum system voltage: DC1500V (IEC/UL)
Maximum series fuse rating: 35A
Nominal operating cell temperature: 45±2℃
Protection class: Class II
Fire rating: UL type 29 / IEC Class C
Product certifications: IEC 61215, IEC 61730, UL 61730
Product warranty: 12Years
Power warranty: 30Years
Cell technology: Tairay silicon wafers + HPBC 2.0 cell technology