The HQST 100W Flexible Panel is a 100-watt monocrystalline (flexible) option best suited to high-efficiency lightweight charging. Class-leading 23% flexible efficiency.
Overview
The HQST 100W flexible monocrystalline panel solves the weight-and-rigidity problem of glass modules: at just 5.3 lbs and only 0.8 in thick, it bends to fit a van roof, trailer, or boat deck without a mounting rack.
A 9-busbar cell layout under an ultra-transparent PET surface lifts conversion efficiency to about 22–23%, and it's backed by a 25-year power-output warranty (80% at year 25).
Features & real-world use

Higher conversion from 9 busbars
A 9-busbar layout uses narrower ribbons and a larger cell-receiving surface than a 5-busbar panel, lifting efficiency and cutting resistive loss.

About 21.5% efficient
Large 166mm cells with 9-busbar tech push conversion efficiency to roughly 21.5% — high for a flexible panel.

Quality by design
An IP67 junction box keeps out splashes and dust, MC4 leads plug straight into an off-grid system, and six mounting holes secure it to an RV or other surface.

Ultra-thin and light
At about 0.1 in thick — thinner than two pennies — and just 5.3 lbs, it adds almost nothing to a roof's load and sits nearly flush.

Longer service life
Its flexible build lowers the risk of microcracks to about 1/9 (versus 1/5 on a stiffer 5BB panel), and it holds more working area under partial shade.

Extremely flexible
The panel bends to follow curved RV, boat, rooftop, and camping surfaces where a rigid framed module can't sit.
Built for any roof, deck, or vehicle
At 5.3 lbs and about 0.1 in thick, the HQST flexible panel bends to follow a curved roof or deck and fastens through six mounting holes — so it goes low-profile where a rigid framed panel can't.
RV & trailer roofs
Follows the crown of a fiberglass or aluminum roof and sits nearly flush, secured through its six mounting holes.
Camper vans & conversions
Thin and light for a high-top or pop-top roof, with a low profile that helps aerodynamics.
Boats & marine decks
Bends to a cabin top or deck and shrugs off sun and spray thanks to its IP67 junction box.
Overland & trailers
Low-profile and tough enough to handle trail vibration and dust.
Mobile & manufactured homes
Adds minimal roof load and mounts low, well within a thin roof's dead-load budget.
Cabins & sheds
A lightweight way to power a small off-grid outbuilding without a mounting rack.
Key features
- Just 5.3 lbs and 0.8 in thick — minimal roof load, low profile
- 9-busbar cells, ~22–23% conversion efficiency
- Flexes to fit curved van, trailer, and marine surfaces
- Waterproof construction for outdoor exposure
- 25-year power-output warranty; 1-year materials and workmanship
Specifications
| Brand | HQST |
|---|---|
| Category | Flexible & CIGS Panels |
| Power output | 100 W |
| Cell technology | Monocrystalline (flexible) |
| Efficiency | 23.0% |
| Weight | 5.3 lbs |
| Price | $147.00 |
| Best for | High-efficiency lightweight charging |
| Max power (STC) | 100W |
| Cell efficiency | 22–23% |
| Open-circuit voltage (Voc) | 23.5V |
| Optimum operating voltage (Vmp) | 19.4V |
| Short-circuit current (Isc) | 5.51A |
| Weight | 5.3 lbs |
| Dimensions | 43 × 23 × 0.8 in |
| Operating temperature | -40°F to 194°F |
Roof-load fit for manufactured homes
Semi-flexible panels add roughly 0.5–1 psf and mount low-profile, well within the 10–15 psf dead-load budget of most manufactured roofs.
Where this panel's efficiency lands among portable, flexible, and rigid options:
Pros & cons
👍 Pros
- Lightweight semi-flexible build conforms to curved roofs
- Very light at 5.3 lbs — minimal roof dead load
- High efficiency (23.0%) packs more watts into limited roof space
👎 Cons
- Verify roof load capacity and mounting before installation
Is the HQST 100W Flexible Panel right for your mobile home?
Choose this panel if your priority is high-efficiency lightweight charging. Because it is a flexible, low-profile panel, it can usually go straight onto a manufactured roof without exceeding the 10–15 psf dead-load limit. For full sizing math, HUD roof-load zones, and permitting requirements, read our complete buyer's guide.
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