STAR SR-SP-430W-N-2 Bifacial Solar Panels, 860W, 25% Efficiency, 24V/48V

Choosing solar panels can mean prioritizing a simple, direct-facing setup or looking for a design that can also make use of reflected light. This two-panel STAR set combines bifacial construction with a shade-resistant design, giving off-grid projects a practical way to capture sunlight from both sides of each panel.

Each panel is rated at 430W, for 860W combined. The N-type monocrystalline panels are designed for 24V or 48V systems and suit applications such as a home backup setup, an off-grid cabin, a farm, or a garden.

What you’ll notice day to day

Bifacial construction lets the panels collect sunlight on the front and rear surfaces. In an installation where light can reach both sides and reflect onto the back, that design can make use of more than direct front-facing sunlight. Placement matters: allow space for rear-side light and consider the surface beneath the panels when planning the array.

For sites where partial shade from trees or nearby objects is part of the setting, the shade-resistant design uses half-cell technology and multi-busbar construction to help reduce power loss from shading. That can be useful when choosing a location for a garden or farm installation where completely unobstructed sun may be difficult to achieve.

Key points

The set contains two 430W N-type monocrystalline solar panels, with a combined maximum power rating of 860W. They are intended for 24V or 48V systems and use 16BB cell technology. The listed 25% efficiency and bifacial design distinguish this pair from panels that collect light only from the front, while UL61730 certification is listed as a product feature.

The panels are designed for outdoor solar applications, including off-grid homes, cabins, farms, and gardens. For example, when planning a cabin system, the combined rating and system-voltage options help define the panel array around the setup’s requirements. Buyers also speak positively about panel performance and quality, those comments reflect individual experiences rather than a guaranteed output for every installation.

Practical tips

Plan the installation around the system voltage and give both panel surfaces access to light where possible. Because rear-side generation depends on reflected sunlight, the mounting position and surrounding surfaces are relevant to how the bifacial design is used. For partial-shade locations, the shade-resistant construction is a useful feature to consider alongside the panels’ exposure throughout the day.

The product dimensions are 67.8 by 44.7 by 1.2 inches. Use those measurements when planning the available mounting area, and position the panels with their bifacial construction in mind. The set is a fit for projects that need a two-panel array rather than a single panel, with applications ranging from a garden or farm installation to an off-grid home setup.

Should you buy it?

Choose the STAR SR-SP-430W-N-2 if you’re building a 24V or 48V solar system and want two 430W panels with bifacial power generation, N-type monocrystalline cells, and a design intended to reduce the effect of partial shade. It’s especially suited to off-grid projects where the installation can make use of light reaching both sides of the panels.