PowerGuide

Modular Solar 475W Unit vs PatioSun Duo

A side-by-side look at the Modular Solar 475W Unit and PatioSun Duo. Winning figures are highlighted.

Modular Solar Technologies
Modular Solar 475W Unit
PatioSun
PatioSun Duo
Price from £650 £699
Panel capacity 475 Wp 890 Wp
Panels 1 2
Max AC output 475 W 800 W
Microinverter n/a Hoymiles HiFlow 800W
Mounting n/a Ground mount, pre-installed
Bifacial panels n/a Yes
Cable length n/a 5 m
Warranty 10 yrs 10 yrs
ENA register reference MODUL/21169/V1/A1 PATIO/21026/V1/A2

Best value per row highlighted. Prices last checked 15 October 2026.

Modular Solar 475W Unit

The larger of Modular Solar's two free-standing units: 475W of AC output against the 340W unit's 340W, in a heavier housing built from British-grown timber rather than recycled plastic. Like the 340W unit, its output sits well under the 800W legal cap.

Full Modular Solar 475W Unit review

PatioSun Duo

The two-panel PatioSun kit: 890W of bifacial panels against the same 800W microinverter and the Lite's single 445W panel. Same pre-installed steel mount and sold direct, at roughly £250 more than the single-panel Lite.

Full PatioSun Duo review