1 / 8Hover to zoom · click to enlargeLensun 300W Flexible Solar Panel for Alu-Cab RT-4S, Gen 3-R, Gen 3 and 3.1 Roof Tents
Ships from Lensun Solar's U.S. warehouse
- Shipping calculated at checkoutShown before you pay, once you enter your address.
- Authorized Lensun Solar dealerFull manufacturer warranty and support.
- 2-year warrantyWorkmanship, backed by Lensun.
- 30-day returnsOn new, unused items.
Shipping & handling
- Orders are processed within 1–3 business days.
- Parcel items typically arrive 3–7 business days after shipping. Freight items (panels, batteries, inverters and kits) typically arrive 5–14 business days after shipping.
- Rich Solar and SunGoldPower products ship free to the lower 48 states and Washington, D.C., with no minimum. Lensun shipping is based on weight and shown at checkout.
- Freight deliveries need an appointment and a signature, and are delivered curbside.
Returns & refunds
Request a return within 30 days of delivery. Items must be new, unused, not installed, and in their original packaging.
- Contact us first for a Return Merchandise Authorization (RMA). Returns sent without one are refused.
- For a change-of-mind return, you pay return shipping and a 15% restocking fee is deducted from your refund.
- Damaged on arrival? Report it within 3 business days of delivery and we arrange a replacement or full refund.
Warranty
Lensun's warranty policy covers its products with a 24-month workmanship warranty for the original buyer; Lensun repairs or replaces defective items. Lensun's FAQ rates its cells at 90% or more of nominal power after 10 years and 80% after 25 years.
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A 300W flexible solar set made for Alu-Cab rooftop tents
This Lensun set of two 150W flexible panels (300W) is made for the Alu-Cab RT-4S, Gen 3-R, Gen 3 and 3.1 rooftop tents. Each panel uses 18BB N-type cells rated at 25% efficiency under a self-cleaning ETFE film, with a 9-layer monolithic lamination that includes two layers of aerospace-grade window film.
Each panel measures 37.3 × 34.9 in and weighs 6.2 lb (2.8 kg). Fix them with structural adhesive, zip ties or Velcro, without roof reinforcement. Buy the panels alone or with Lensun's 20A waterproof MPPT controller, which comes pre-wired with fuses and connectors.
Made for Alu-Cab roof tents
Two 150W panels are sized for the Alu-Cab RT-4S, Gen 3-R, Gen 3 and 3.1 rooftop tents.
- Each panel 37.3 × 34.9 in (947 × 885 mm)
- 6.2 lb (2.8 kg) each, about 30% of a glass panel
N-type solar cells
Advanced 18BB N-type cells rated at 25% efficiency deliver more power from the same size and reduce hot spots and micro-cracks.
- Twin-array design keeps working in partial shade
- Self-cleaning ETFE film with high light transmittance
9-layer monolithic lamination
Nine materials laminated into one seamless piece, including two layers of aerospace-grade window film, shield the cells from vibration, impact and thermal stress.
- Protects cells from hail, heavy snow and high winds
- Built for off-road and overland use
Simple mounting, plug-and-play wiring
Fix the panels with structural adhesive, zip ties or Velcro, without costly structural roof reinforcement.
- Optional 20A waterproof MPPT controller, pre-wired with fuses
- Controller works with sealed, AGM, gel and lithium batteries
- Protects against reverse polarity and overcharging
Specs, images and product claims on this page come from Lensun's Alu-Cab rooftop tent 300W flexible panel page. Last checked Oct 30, 2026.
Specifications
From Lensun Solar's published specifications for model LS-150FX2-ALUx2.
Electrical (per panel)
| Peak power | 150W (300W for two) |
|---|---|
| Max power voltage | 18V |
| Max power current | 8.33A |
| Open circuit voltage | 21.24V |
| Short circuit current | 9.16A |
| Power tolerance | ±3% |
| Maximum system voltage | 500V |
Cells & build
| Cell type | 18BB N-type |
|---|---|
| Cell efficiency | 25% |
| Surface | ETFE film |
| Lamination | 9-layer monolithic, dual aerospace-grade window film |
| Layout | Twin array for shade tolerance |
| Test conditions | STC: AM1.5, 1000 W/m², 25°C |
Fit & physical
| Fits | Alu-Cab RT-4S, Gen 3-R, Gen 3 and 3.1 rooftop tents |
|---|---|
| Panels | 2 × 150W |
| Dimensions (each) | 37.3 × 34.9 × 0.1 in (947 × 885 × 2.5 mm) |
| Weight (each) | 6.2 lb (2.8 kg) |
| Cable | 3.3 ft (1 m) |
| Mounting | Structural adhesive, zip ties or Velcro |
| Kit options | Panels only, or panels + 20A MPPT controller |
| Warranty | 2-year workmanship |
| Model / SKU | LS-150FX2-ALUx2 |
What's in the box
Package contents as listed by Lensun Solar.
Documents & certificates
Official files from Lensun Solar.
Questions about the Lensun 300W Flexible Solar Panel for Alu-Cab RT-4S, Gen 3-R, Gen 3 and 3.1 Roof Tents
Answers from Lensun Solar's published product information.
What warranty comes with Lensun flexible and hood panels?
Lensun covers its products with a 24-month (2-year) workmanship warranty for the original buyer. Lensun also rates its solar cells to produce at least 90% of nominal power after 10 years and 80% after 25 years.
How is a flexible panel mounted?
Lensun recommends bonding the back of the panel with a silicone structural adhesive such as Sikaflex 252. On a hood, Lensun highly recommends its custom vinyl decal between the panel and the paint to protect the finish.
Will it work on cloudy days?
Yes, but it produces less. Lensun says a panel under a light overcast sky may produce about half as much as in full sun.
Why does shade matter so much?
The cells in a panel are wired together, so every cell needs full sun for the panel to work at its best. If any part of the panel is shaded, the output of the whole panel drops.
Can I walk on a flexible panel?
Lensun doesn't recommend it. Walking on the panel can damage the cells and solder joints inside.
Customer reviews
Reviews from Sun Energy Depot customers, collected by Judge.me.