5 products
Big Solar Panels
30 W, 40 W and 45 W modules for RV, marine and cabin systems.
Big Solar Panels Range
The larger modules in the range, from 30 W to 45 W, in both multicrystalline and monocrystalline. Module efficiency runs from 10.0 % to 13.10 % and all carry the same 10-year 90 % / 25-year 80 % power output warranty.
BSM010P-TBSM010P-T 10 W Multicrystalline Solar Module
A 10 W 12 V module at 9.5 % efficiency with a 9.8 ft open-end cable.
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BSM030PBSM030P 30 W Multicrystalline Solar Module
A 30 W 12 V module at 426 × 680 × 18 mm and 3.2 kg, with a 3 ft open-end cable.
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BSM040PBSM040P 40 W Multicrystalline Solar Module
A 40 W 12 V module at 537 × 665 × 30 mm with 2.35 A optimum operating current.
View details →BSM045PBSM045P 45 W Multicrystalline Solar Module
The largest module in the range — 45 W, 13.10 % efficiency, 2.56 A optimum operating current.
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BSM030MBSM030M 30 W Monocrystalline Solar Module
A 30 W monocrystalline module with a 3.2 mm tempered glass front and an IP-65 junction box.
View details →What it solves
Why This Range Exists
The problem on site
- A 10 W panel will never bring a leisure battery back from flat
- Two small modules mean two mount sets, two cable runs and two roof penetrations
- Roof area, not budget, is usually what limits an RV or marine array
- Permanent installations need glass thickness, junction box rating and fuse data, not just watts
How this range answers it
- 30 W to 45 W modules with 1.74 A to 2.56 A optimum operating current
- Module efficiency from 10.0 % to 13.10 %, published per model
- The 40 W and 45 W share one frame size, so higher output costs no extra roof space
- The monocrystalline BSM030M publishes 3.2 mm tempered glass, an IP-65 box and a 12 A fuse rating
Knowledge
Related Knowledge
How a Photovoltaic Cell Turns Sunlight into Electricity
The physics behind every module on this site, in the terms our own FAQ uses.
The Three Parts of a Motorhome Solar Battery Charging System
Panel, regulator, battery — what each one does and why you cannot skip the middle one.
Sizing a Solar Panel for an RV
Count the loads first, then pick the module — not the other way round.
Questions
Frequently Asked Questions
Which part numbers are in Big Solar Panels?
5: BSM010P-T, BSM030P, BSM040P, BSM045P and BSM030M. Each has its own page with dimensions, materials and packing.
How are these packed for export?
Modules are packed to protect the glass and the frame in transit. Ask us for carton dimensions, gross weight and pallet configuration for your quantity.
How do I choose between the items in this group?
30 W, 40 W and 45 W modules for RV, marine and cabin systems. If you send us the panel and the surface, we will tell you which part number to order.
What do I need to send you for a quotation?
The part numbers and quantities, the destination port, and the panel you are mounting if you are not certain which item fits. That is normally enough to quote in one exchange.
Get a Price on Big Panels
30 W to 45 W modules with 1.74 A to 2.56 A optimum operating current — that is what this group is for. Send us the quantity you need and the panel or surface it is going on, and we will come back with part numbers and a price.