Bolt 280W
£399.99
Topcon cells with 22.7% high efficiency
TÜV certified to IEC 61730 and 61215 standards
Class C flame retardant & IP68 waterproof for all UK weather
Quantity
Features
Powerful and Modular Setup: Choose Bolt kits with a sleek, full-black design. The single panel weighs just 3 kg, making it lightweight and easy to position on fences, balconies, patios, or garden structures.
Fast and Easy Installation: Everything is included for a quick 10-minute setup. Just secure the panel with the rubber straps and connect using the provided cables and components.
Smart Energy Management: Powered by the high-efficiency Hoymiles microinverter with 96.7% peak efficiency, 99.8% MPPT efficiency, built-in Wi-Fi, and S-Miles Cloud compatibility for remote monitoring.
Safe and Regulation Ready: Designed for compliant UK installation without plug- and-play. Includes a double pole isolator for connection via a fused spur and radiant socket, fully aligned with UK electrical standards.
Expandable and Customisable: Tailor your setup with optional accessories like longer extension cables, a faceplate, or a double pattress to fit your installation needs.
What's in the Box
- 1× 280W Solar Panel
- 1× Hoymiles HMS-800W-2T microinverter
- 1× AC connection cable
- 1× Microinverter stand
- 1× Double pole isolator
- 2× Disconnect tools
- 5× Elastic straps
- 1× Set of solar warning labels
- 1× Installation guide
Panel and kit accessories are delivered in two separate boxes.
Downloads
Tried. Loved. Shared.
What Our Customers Say
Join hundreds of happy Thunder customers generating their own clean energy.
Savings Calculator
Enter your details below to discover your clean energy and savings potential.
Step 1: Enter Details
Step 2: Calculate Potential Savings
Energy production
kWh / year
Potential savings
£ / year
*Calculations are based on official solar radiation data from the European Commission's PVGIS database.
**Estimated production accounts for a 14% system loss and assumes a vertical panel angle (90° inclination).
The Thunder Promise
Shop With Confidence
Free UK Delivery
Fast, tracked shipping at no extra cost.
10-Year Warranty
Microinverter guaranteed for a decade. Every component backed by its own warranty.
Expert Support
Free setup video call with every kit, plus ongoing support before, during, and after your purchase.
14-Day Returns
Not satisfied? Return your kit within 14 days for a full refund.








































