665

Name: 665
Brand: Zhejiang Winhitech New Energy Co., Ltd.

by Zhejiang Winhitech New Energy Co., Ltd. · China

RHA66MDGDC 645-665W Technology: Bifacial, PERC Zhejiang Winhitech New Energy Co., Ltd.is a dynamic new energy enterprise backed by central and state-owned resources. Guided by the vision of "Leading the Way with HJT Expertise," Winhitech is dedicated to the research, development, production, and sales of high-efficiency heterojunction (HJT) solar cells and modules. The company has an ambitious total production plan of 30 GW for cells and 15 GW for modules. The first phase, featuring 3 GW of cell production and 5 GW of module production, spans 211 acres in Zhoushan City, Zhejiang Province.

PERC665 W21.41% effBifacial30-Year Product Warranty

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Overview

Key Specifications

Max Power

665 W

Efficiency

21.41%

Product Warranty

30 years

Dimensions

2384 × 1303 mm

Connectors

MC4

Max System Voltage

1500 V

Launch Year

2025

Price

—

Full Specifications

Product Identity

Name665

ManufacturerZhejiang Winhitech New Energy Co., Ltd.

CountryChina

CategoryPERC

Cell TypeBifacial, PERC

Number of Cells132

Electrical Parameters (STC)

Model	Pmax (W)	Vmpp (V)	Impp (A)	Voc (V)	Isc (A)	Eff (%)
665	665	38.29	17.37	46.1	18.48	21.41%

Mechanical Characteristics

Dimensions2384 × 1303 × 33 mm

Weight38.3 kg

Front GlassTempered

Back GlassTempered

FrameAnodized Aluminium

Junction BoxIP 68

Output Cables300 mm / 4 mm2

ConnectorsMC4

Mechanical Load5400 Pa

Operating & Temperature

Operating Temperature-40°C to 85°C

Max System Voltage1500 V DC

Max Series Fuse Rating35 A

Power Tolerance0 ~ +3 %

NMOT45 °C

Temp Coeff Pmax-0.34 %/°C

Temp Coeff Voc-0.25 %/°C

Temp Coeff Isc0.04 %/°C

Warranty

Product Warranty30 years

Power Warranty30 years (84.95% at year 30)

Bifacial Output (Rear-side Power Gain)

Certifications & Regions

Certifications—

RegionsAsia-Pacific

CountriesChina

Commercial

Price—

Launch Year2025

AvailabilityAvailable

665