Description
Schuco / SMA Sunny Boy SB4000 TL‑20 – 4.0 kW Solar PV Inverter
Dual MPPT | 4000 W | High‑Efficiency Model
The Sunny Boy SB4000 TL‑20 is a premium 4 kW solar inverter featuring dual MPPT trackers, allowing you to run two independent strings for maximum system flexibility and performance. Widely regarded as one of the top inverters in its class, it delivers excellent efficiency, reliability, and long‑term durability.
Item Details
Bare unit only
No wall bracket or ESS isolator handle included
Removed from a fully functioning system
Ideal for replacements, upgrades, or system repairs
International shipping available
Please feel free to message with any questions.
Why buy from us
Registered company offering technical assistance by phone or email
VAT invoice supplied with every purchase
We specialise in recycling used solar equipment, helping reduce waste and support sustainability
All items are tested & inspected in our workshop using specialist equipment
Includes a 3‑month warranty unless otherwise stated
Friendly support — we’re happy to help with setup or discuss any item you’re considering
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