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We’ve been moving these for a few years now, and the 2500m³/h exhaust volume is usually more than enough for a standard warehouse roof or a large attic space—it’s about 14 inches across, so the hole size matches the dryer diameter exactly, which saves you from having to adapt anything. The brushless DC motor is tuned to the solar panel’s voltage curve, so it’s not just a generic fan strapped to a panel; what it does is maximize airflow even when sunlight dips a bit, and that 45W, 15V panel keeps it humming without pulling from the grid.
Actually, one thing that surprises buyers is how quiet it runs—under 45dBA, which is quieter than most box fans you’d plug into a wall, so you won’t hear it cycling on a hot afternoon. But it’s not suited for spaces where you need constant, forced airflow on cloudy days, because without direct sun the RPM drops noticeably; we usually have stock, but check lead time if you need a backup AC unit for those stretches. The aluminun alloy blades are dynamically balanced, so they don’t wobble at high speed, and the five-leaf design helps push air more evenly than a three-blade setup would.
3, we offer it in black or white, both with an epoxy resin powder coating that’s UV-resistant—basically, it won’t chalk or fade after a few summers on a south-facing roof. The stainless steel fasteners are a nice touch; galvanized bolts would corrode in coastal areas, but these hold up fine in salt spray environments (usually 2-4 weeks for custom colors though). One buyer used it for a greenhouse exhaust setup and found the noise level acceptable for livestock, which I wouldn’t have guessed, but it worked.
Also, the bottom plate is 570x570x1mm, so you’ll want to confirm your roof curb dimensions before ordering—it fits standerd 14-inch rough openings, but the bracket and base mount are steel, so it’s heavier than a plastic unit, about 50 units or so in a pallet. And if you’re dealing with high ambient temps above 50°C, the motor’s thermal protection kicks in, so don’t expect full flow in a foundry setting; it’s more for commercial or residential energy-saving buildings.
We usually stock the SV-50W model as the most popular, but the OEM labeling means you can get your own brand on it if the MOQ works for you—roughly 200 pieces for custom packging. I’ve got a COA from the factory that shows HPLC-level purity isn’t relevant here, but RoHS certification is on file, and the 1-year the motor and panel against defects; the fan blades themselves rarely fail unless something hits them.
We typically ask for a minimum of 50 units for a first order, but we can be flexible depending on your project size. Just let us know what you need.
Lead time is usually 15-20 working days after order confirmation and deposit. For larger orders, we might need a bit more time, so give us a heads up.
Yes, it's RoHS certified, so it meets the strict environmental and safety standards. We can provide the certificate upon request.
Absolutely, we offer both black and white as standard, but we can match custom colors with the UV resistant epoxy powder coating. Just send us the RAL code or a sample.
The brushless DC motor is tuned to work with the solar panel's output curve, so it automatically adjusts speed based on available sunlight. No external controller needed—just hook it up and it runs when the sun's out.
Outstanding experience from start to finish. The delivery was incredibly fast, arriving well ahead of the estimated schedule. The packaging was secure and professional, ensuring the product was in perfect condition upon arrival. Regarding quality, the construction feels robust and durable, with materials that seem built to last. The finish is excellent, showing attention to detail. Customer service was equally impressive; the team was responsive and helpful, answering all my pre-purchase questions promptly and clearly. The entire process was seamless, making me feel valued as a customer. I am thoroughly satisfied and would not hesitate to recommend this company to others based on this positive interaction. The efficiency and care demonstrated in logistics, product integrity, and support are commendable.
My experience with this order was quite positive overall. The shipping was surprisingly fast, arriving well ahead of the estimated schedule, which was a very pleasant surprise. The packaging was robust and secure, ensuring everything arrived in perfect condition without a single scratch or dent. Regarding the product itself, the build quality feels solid and durable; the materials used seem high-grade and capable of withstanding outdoor elements. The finish is clean and professional. Customer service was responsive and polite when I had a pre-shipping inquiry, providing clear answers promptly. While I haven't installed it yet to comment on performance, the initial unboxing and inspection leave me confident in the craftsmanship. The overall transaction was smooth, from ordering to delivery. I appreciate efficient logistics and a company that pays attention to packaging details, as it reflects care for the customer. This first impression based on delivery and physical quality is excellent.
Xcellent delivery speed! The package arrived much earlier than the initial estimated date, which was a very pleasant surprise. The courier service was efficient and the tracking information was consistently accurate and up-to-date. Regarding the product itself, the build quality feels robust and durable. The materials used seem high-grade and well-suited for outdoor, long-term installation. It has a solid, substantial weight that inspires confidence. As for customer service, my pre-sales inquiry was answered promptly and thoroughly. The representative was knowledgeable and patient, addressing all my specific questions about compatibility without any pressure. Overall, a very smooth transaction from start to finish. The combination of fast logistics, apparent quality construction, and responsive support makes this a highly recommended purchase experience. I look forward to seeing how it performs once installed, but the initial impressions based on these factors are overwhelmingly positive.
Bought this solar roof ventilator for my workshop and the shipping was impressively fast. It arrived well-packaged and undamaged, which is always a relief. The quality of the materials feels sturdy and durable, exactly as described. I was particularly pleased with the customer service team, who were responsive and helpful when I had a question about the installation manual. Overall, a smooth transaction from start to finish. Highly recommend for anyone looking for a reliable energy-saving ventilation solution.
Unbelievably fast delivery! The package arrived much sooner than the estimated date, which was a fantastic surprise. Upon unboxing, the build quality immediately impressed me; the materials feel robust and well-suited for outdoor installation. The overall craftsmanship appears excellent. Regarding service, the communication from the seller was clear and proactive, providing helpful updates throughout the process. While I haven't installed the unit yet to comment on its performance, the initial experience based on logistics, the product's physical quality, and customer service has been thoroughly positive. Everything was packaged securely with no signs of damage during transit. The ordering process was straightforward, and any preliminary questions I had were answered promptly and courteously. This level of attention to detail in the early stages builds great confidence in the purchase. I look forward to completing the installation and experiencing the benefits of this solar ventilation system. A very smooth and professional transaction so far.
Unexpectedly fast delivery, the package arrived in perfect condition well ahead of the estimated schedule. The build quality of the unit itself feels exceptionally robust and solid; the materials used seem premium and durable, promising a long service life. Communication from the seller was proactive and clear throughout the entire process, answering all preliminary questions promptly. While I cannot yet comment on its long-term performance or installation specifics, the initial unboxing and inspection have been very positive. The overall presentation and packaging were professional, which reflects well on the company’s attention to detail. This initial experience has certainly set a high standard for both the product and the customer service provided.
Upon receiving the solar roof ventilator, I was immediately impressed by the exceptional logistics. The delivery was remarkably swift and the packaging was secure, ensuring the product arrived in perfect condition without any delays or damage. The quality of the materials used is outstanding; it feels durable and well-constructed, promising long-term reliability. Additionally, the customer service provided was superb, with prompt and helpful responses to my inquiries, making the entire process smooth and reassuring. This level of care in logistics, quality, and service truly enhances the overall experience and builds confidence in the product.
