4 products
Small Solar Panels
5 W and 20 W modules for battery maintenance and light off-grid duty.
Small Solar Panels Range
The small end of the range: 5 W and 20 W modules in 12 V and 24 V nominal, including a monocrystalline 20 W. These are battery-maintenance and small-load panels — gate openers, weather towers, garden lighting, a leisure battery that has to survive the winter.
BSM005P-TBSM005P-T 5 W Multicrystalline Solar Module
A 5 W 12 V multicrystalline module for battery maintenance, remote gates and garden lighting.
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BSM020P-TBSM020P-T 20 W Multicrystalline Solar Module
A 20 W 12 V multicrystalline module, 10.0 % efficient, with a 36-cell 2 × 18 layout.
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BSM020P-NBSM020P-N 20 W Multicrystalline Solar Module
The 24 V nominal 20 W module — 68 cells, 41.3 V open circuit, 10.38 % efficient.
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BSM020MBSM020M 20 W Monocrystalline Solar Module
A 20 W 12 V monocrystalline module at 650 × 306 × 17 mm with a 6063-T5 anodised frame.
View details →What it solves
Why This Range Exists
The problem on site
- A battery left standing self-discharges and sulphates long before anyone notices
- Running a supply cable to a remote gate or instrument costs more than the instrument
- Portable panels only work when somebody remembers to put them out
- Controllers get specified from the wrong figure and fail on the first bright day
How this range answers it
- 5 W to 20 W modules sized for maintenance and light off-grid duty
- 12 V and 24 V nominal, including a slim 17 mm monocrystalline option
- Open circuit voltage and short circuit current published so fusing can be sized properly
- Listed applications include remote gates, weather towers and garden lighting
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.

Reading a Solar Module Datasheet
Vpm, Voc, Isc, STC, tolerance, series fuse rating — what each one decides.
Questions
Frequently Asked Questions
Which part numbers are in Small Solar Panels?
4: BSM005P-T, BSM020P-T, BSM020P-N and BSM020M. 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?
5 W and 20 W modules for battery maintenance and light off-grid duty. 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 Small Panels
5 W to 20 W modules sized for maintenance and light off-grid duty — 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.

