625-650 Watt bifacial module with dual glass
Key attributes
| Brand | Wone |
| Model NO. | 78HL4-BDV 625-650 Watt BIFACIAL MODULE WITH DUAL GLASS |
| Maximum Power | 640Wp |
| Series | 78HL4-BDV |
Product descriptions from the supplier
Certification
IEC61215:2021 / IEC61730:2023 ·
IEC61701 / IEC62716 / IEC60068 / IEC62804 ·
ISO9001:2015: Quality Management System ·
ISO14001:2015: Environment Management System ·
ISO45001:2018: Occupational health and safety management systems.
Features
N-type modules with Tunnel Oxide Passivating Contacts (TOPcon) technology offer lower LID/LeTID degradation and better low light performance.
N-type modules with JinkoSolar's HOT 3.0 technology offer better reliability and efficiency.
Dual-sided power generation gain increases with backside exposure to light, significantly reducing LCOE.
Certified to withstand: 5400 Pa front side max static test load 2400 Pa rear side max static test load.
Better light trapping and current collection to improve module power output and reliability.
Minimizes the chance of degradation caused by PID phenomena through optimization of cell production technology and material control.
Mechanical Characteristics
Packaging Configuration
Specifications (STC)
Specifications (BNPI)
Application Conditions
Engineering Drawings
*Note: For specific dimensions and tolerance ranges, please refer to the corresponding detailed module drawings.
Electrical Performance & Temperature Dependence
What is a solar bifacial module?
Solar bifacial modules are solar panels capable of absorbing light from both sides (that is, the front and the back) and converting it into electrical energy. Compared to traditional monofacial solar modules, bifacial modules have a higher potential for energy output, as they can not only capture the sunlight directly shining on them but also absorb light reflected from the ground as well as scattered light from the surroundings.
Working Principle of Bifacial Modules:
Front Side Absorption: The front side works like traditional solar modules, absorbing direct sunlight through the solar cells and converting it into electrical energy.
Back Side Absorption: The back side is also covered with a layer of solar cells that can absorb sunlight reflected from the ground as well as scattered light from the surroundings.
Light Trapping: The reflectivity of the ground affects the power generation efficiency of the back side of bifacial modules. Ground surfaces that are white or light in color have higher reflectivity, providing more reflected light to the solar cells on the back side.
Environmental Impact: The installation environment can also affect the performance of bifacial modules. For example, different surfaces such as grasslands, snow-covered areas, or rooftops will have varying levels of reflectivity and amounts of scattered light.
Related Products
-
695 W - 730 W High Effficiency Bifacial N-type Heterojunction(HJT) Technology
-
640 W - 670 W Bifacial high-power Dual cell PERC module (mono)
-
690 W - 720 W High-power N-type TOPCON bifacial modules
-
610-635 Watt mono-facial module lower LID/LeTID
-
580-605 Watt mono-facial module with Tunnel Oxide Passivating Contacts (TOPcon) technology
Related Knowledges
-
How to properly inspect and maintain a transformer?1 Transformer Testing and Protection Grounding is divided into working grounding and protective grounding. Working grounding: Grounding performed to meet the operational requirements of equipment.Protective grounding: Grounding implemented to prevent the metal enclosures of operating electrical equipment, structures of switchgear installations, and transmission towers from becoming energized, thereby endangering personal and equipment safety. Therefore, grounding of the transformer neutral pointOliver Watts10/18/2025 -
How to select a dry-type transformer?1. Temperature Control SystemOne of the main causes of transformer failure is insulation damage, and the greatest threat to insulation comes from exceeding the allowable temperature limit of the windings. Therefore, monitoring temperature and implementing alarm systems for transformers in operation are essential. The following introduces the temperature control system using the TTC-300 as an example.1.1 Automatic Cooling FansA thermistor is pre-embedded at the hottest spot of the low-voltage winJames10/18/2025 -
Comprehensive Analysis of Global Transformer StandardsComparison of Domestic and International Transformer StandardsAs a core component of power systems, the performance and safety of transformers directly affect grid operation quality. The IEC 60076 series standards established by the International Electrotechnical Commission (IEC) correspond multidimensionally with China’s GB/T 1094 series standards in technical specifications. For example, regarding insulation levels, IEC specifies that power frequency withstand voltage for transformers rated atNoah10/18/2025 -
How to Choose the Right Transformer？Transformer Selection and Configuration Standards1. Importance of Transformer Selection and ConfigurationTransformers play a critical role in power systems. They adjust voltage levels to suit different requirements, enabling electricity generated at power plants to be efficiently transmitted and distributed. Improper transformer selection or configuration can lead to serious issues. For example, if the capacity is too small, the transformer may not support the connected load, causing voltage droJames10/18/2025 -
How to handle transformer faults?Common transformer faults and their handling methods.1. Transformer OverheatingOverheating is extremely harmful to transformers. Most transformer insulation failures are caused by overheating. Rising temperature reduces the dielectric strength and mechanical strength of insulation materials. IEC 354, Loading Guide for Transformers, states that when the hottest spot temperature of a transformer reaches 140°C, bubbles will form in the oil. These bubbles can reduce insulation performance or cause fFelix Spark10/18/2025 -
How to Inspect 10kV Vacuum Circuit Breakers ProperlyI. Inspection of Vacuum Circuit Breakers During Normal Operation1. Inspection in Closed (ON) Position The operating mechanism should be in the closed position; The main shaft roller should be disengaged from the oil damper; The opening spring should be in a charged (stretched) energy-stored state; The length of the moving contact rod of the vacuum interrupter protruding below the guide plate should be approximately 4–5 mm; The bellows inside the vacuum interrupter should be visible (this does noFelix Spark10/18/2025
