VSUN 370W BOB 120 Half Cell Solar Panel

Full Product Summary

VSUN 370W BOB 120 Half Cell Bifacial Solar Panel Manufacturer: VSUN Solar | Series: Black On Black (BOB) | Cell Count: 120 Half Cells | Type: Bifacial

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Overview

The VSUN 370W BOB 120 Half Cell Bifacial Solar Panel is a high-efficiency monocrystalline photovoltaic module designed for residential and light commercial solar installations. Part of VSUN’s Black On Black (BOB) aesthetic series, this panel combines strong electrical performance with a sleek all-black appearance. As a bifacial module, it captures sunlight from both the front and rear of the panel, generating additional energy from reflected light off the roof surface, ground, or surrounding environment — something standard single-face panels cannot do.

The panel uses 120 half-cut monocrystalline PERC cells, split from 60 full cells. Half-cut cell technology reduces resistive losses and improves shade tolerance compared to standard full-cell panels, resulting in better real-world energy yield, especially on roofs that experience partial shading throughout the day.

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Electrical Specifications (STC)

Measured at Standard Test Conditions: 1000 W/m², 25°C cell temperature, AM 1.5 spectrum. Front side only. Bifacial gain varies by installation.

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Physical & Mechanical Specifications

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Key Features & Technology

Bifacial Design Unlike standard panels that only collect light from the front, bifacial panels generate power from both sides. Light reflected off the roof surface, ground, gravel, or nearby structures hits the rear of the panel and is converted into additional electricity. Depending on the installation and surface reflectivity, bifacial gain can add 10–25% more energy output over a standard single-face panel — at no extra fuel cost.

Half-Cut Cell Technology Standard solar cells are laser-cut in half, creating 120 smaller cells from what would normally be 60 full cells. This reduces the electrical current flowing through each cell by half, cutting resistive losses and improving real-world performance — especially in partial shade conditions.

PERC Technology PERC (Passivated Emitter and Rear Cell) adds a reflective layer to the back of each cell, bouncing unused light back through the cell for a second absorption pass. This boosts efficiency and improves performance in high-heat and low-light conditions compared to standard mono cells.

Black On Black (BOB) Aesthetic Black anodized aluminum frame and black busbars across the cell surface create a clean, uniform appearance. The transparent rear of the bifacial design maintains the sleek look while still allowing rear-side light collection. Designed for homeowners and HOA communities where roof appearance matters.

Shade Tolerance & Split-String Design The 120-cell layout is split into two independent 60-cell halves, each with its own bypass diodes. If one half of the panel is shaded, only that section is affected — the other half keeps producing power normally.

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Installation Overview

The VSUN 370W BOB Bifacial is compatible with standard solar racking systems. To maximize bifacial gain, elevated mounting with a light-colored or reflective surface beneath the array is recommended.

1. Install the racking system to the roof or ground structure per the racking manufacturer’s instructions. Elevated ground mounts or raised roof mounts improve rear-side light exposure.
2. Position panels on the rails in portrait or landscape orientation based on your array design.
3. Secure panels with mid-clamps and end-clamps — always clamp to the aluminum frame, not the glass.
4. Wire panels in series strings using the MC4 connectors. Connect positive to negative down the string.
5. Route DC wiring to the combiner box, string inverter, or microinverters depending on system design.
6. Verify open-circuit voltage of each string before connecting to the inverter.
7. The IP68 junction box is fully weatherproof — no additional sealing required.
8. Ground panel frames to the racking system per NEC 690 or applicable local electrical code.
9. For maximum bifacial gain, avoid shading the rear of the panel and use a light-colored surface beneath the array where possible.

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Warranty

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Certifications

IEC 61215 | IEC 61730 | UL 1703 / UL 61730 | MCS Certified | Salt mist & ammonia resistance certified | Class C fire rating

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Short WordPress Summary

VSUN 370W Black On Black Bifacial Solar Panel

370 watts of clean energy from the front — plus bonus power from the back. The VSUN 370W BOB is a bifacial panel, meaning it captures reflected light off the roof or ground for up to 25% more output than a standard panel. Built with 120 half-cut monocrystalline PERC cells, an all-black design, and backed by a 12-year product warranty and 25-year performance warranty.