Product Overview & System Integration
The 630-650W monocrystalline solar panel series is engineered for high-yield utility-scale and commercial EPC projects. Utilising high-efficiency half-cut cells and multi-busbar (MBB) architecture, this module minimises micro-crack impacts and reduces resistive losses across the busbars. The 1500V DC maximum system voltage capacity directly lowers Balance of System (BOS) costs by allowing longer strings per inverter. Designed for broad system compatibility, these panels integrate flawlessly with standard grid-tied string inverters, hybrid energy storage setups, and heavy-duty off-grid solar plant watering systems. As a primary manufacturer, Xiamen Hemao Industry supports direct OEM production, exact PCB/inverter matching, and custom mounting hole configurations for fixed tilt or single-axis tracker deployments.
Material & Technical Specifications
| Specification Item | Standard Parameter |
| Peak Power Output (Pmax) | 630W - 650W |
| Maximum Module Efficiency | 21.60% |
| Cell Type | Monocrystalline (Half-Cut) |
| Maximum System Voltage | 1500V DC |
| Operating Temperature | -40°C to +85°C |
| Temperature Coefficient (Pmax) | -0.34% / °C |
| Junction Box | IP68 Rated, 3 Bypass Diodes |
| Cables | 4.0mm² (12AWG), Custom Length |
| Frame Material | Anodized Aluminum Alloy (AL6005-T5) |
| Front Glass | 3.2mm High Transmission, AR Coated Heat-Strengthened Glass |
| Mechanical Load | Wind: 2400Pa / Snow: 5400Pa |
| Design Life & Warranty | 12-Year Product Warranty, 30-Year Linear Power Warranty |
Quality Control & Global Standards
Every 630-650W module undergoes rigorous factory testing to ensure bankability for global EPC integrators. We execute 100% double Electro-Luminescence (EL) testing-both pre-lamination and post-lamination-to eliminate internal micro-cracks and soldering defects. Standard procedures include Class AAA solar simulator flash testing to verify exact wattage and electrical characteristics. All batches comply strictly with IEC 61215, IEC 61730, CE, and RoHS certifications. Furthermore, the modules pass strict salt mist and ammonia corrosion resistance tests, ensuring stable energy yield in severe coastal or high-humidity agricultural environments.
Product Details
630–650W Mono Solar Panel Assembly Drawing Engineering Drawings (Unit: mm)
*Length: ±2mm Width: ±2mm
Electrical Performance Parameters (Under Standard Test Conditions)
|
Model |
GK-1-78HTBD-430M |
GK-1-78HTBD-435M |
GK-1-78HTBD-440M |
GK-1-78HTBD-445M |
GK-1-78HTBD-450M |
|||||
|
Test Conditions |
STC |
NOCT |
STC |
NOCT |
STC |
NOCT |
STC |
NOCT |
STC |
NOCT |
|
Maximum Power (Pmax/W) |
630 |
477 |
635 |
481 |
640 |
484 |
645 |
488 |
650 |
492 |
|
Open-Circuit Voltage (Voc/V) |
56.95 |
54.05 |
57.12 |
54.19 |
57.29 |
54.30 |
57.47 |
54.39 |
57.63 |
54.48 |
|
Peak Power Voltage (Vmp/V) |
13.89 |
11.18 |
13.95 |
11.23 |
14.01 |
11.29 |
14.06 |
11.33 |
14.11 |
11.38 |
|
Short-Circuit Current (Isc/A) |
47.60 |
45.14 |
47.75 |
45.26 |
47.90 |
45.45 |
48.06 |
45.58 |
48.22 |
45.72 |
|
Peak Power Current (Imp/A) |
13.25 |
10.57 |
13.31 |
10.62 |
13.37 |
10.66 |
13.42 |
10.71 |
13.48 |
10.76 |
|
Module Conversion Efficiency(%) |
22.5 |
22.7 |
22.9 |
23.1 |
23.3 |
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|
|
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1. STC (Standard Test Conditions): Irradiance 1000 W/m², cell temperature 25°C, spectral distribution AM1.5
2. NOCT (Nominal Operating Cell Temperature): Irradiance 800 W/m², ambient temperature 20°C, spectral distribution AM1.5, wind speed 1 m/s
Load Capacity
| Maximum Static Load (Front) | 5400Pa | |||
| Maximum Static Load (Back) | 2400Pa | |||
| Hail Test Passed | Diameter 25mm, Impact Speed 23m/s |
Packaging & Logistics Safety
We implement robust, export-grade packaging engineered for international ocean freight. Modules are packed vertically in portrait orientation inside reinforced double-corrugated cartons, secured on fumigated wooden pallets. Each pallet is wrapped with multi-layer heavy-duty shrink film and reinforced with industrial steel banding. Corner protectors and spacer blocks are inserted between modules to prevent friction and glass breakage during transit. Container loading is mathematically optimized to maximize space utilization while adhering to strict weight distribution limits, securing your bulk order from our factory floor to the project site.
Delivery time
|
Quantity (units) |
1-20000 |
＞20000 |
|
Lead time (days) |
15 |
Negotiable |
Delivery Schedule: For orders under 20,000 pieces, the standard lead time is 15 days. For quantities exceeding this, we will coordinate to accommodate your needs.
Typical Application Scenarios
Typical Application Scenarios
Choose the plan that suits you best.
Utility-Scale Solar Farms
Maximizes land utilization and LCOE via high energy density and 1500V DC string integration.
01
Solar Plant Watering Systems
Drives high-power variable frequency drive (VFD) solar pumps for large-scale agricultural irrigation.
02
C&I Rooftop Installations
Delivers heavy industrial power generation with excellent low-light performance during dawn and dusk.
03
Remote Telecom Stations & Microgrids
Provides stable off-grid generation capable of handling extreme temperature fluctuations.
04
FAQ
Q: How does the 630-650W panel integrate with 1500V string inverters in large installations?
A: The 1500V DC system rating reduces string count and balance of system (BOS) costs. These panels match perfectly with major commercial string inverters, actively minimizing DC cable losses and voltage drop in utility-scale solar farms or high-capacity agricultural solar watering installations.
Q: What is the exact linear degradation rate guaranteed for this monocrystalline series?
A: We guarantee a first-year power degradation of less than 2.0%, followed by a maximum 0.55% annual degradation rate. This strict quality control ensures your project retains at least 84.8% of its nominal power output even after a 30-year operational cycle.
Q: Can your factory provide batch customization for utility-scale EPC procurement?
A: As a direct China manufacturer, we support full batch customization. Our factory handles custom DC cable lengths, specific MC4-compatible connector variations, frame color adjustments, and laser-etched serial numbers to streamline bulk EPC procurement, site tracking, and long-term asset management.
Call to Action
Request a precise system wiring diagram and wholesale project quote within 24 hours. Submit your BOQ today to secure factory-direct pricing. Batch OEM samples available for immediate technical evaluation and quality testing.
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