Simpson & Partners Home 7 vs Indra Smart LUX: UK-Made Rivals Compared

Two British Underdogs: Which UK-Made Charger Deserves Your Driveway?

Forget the usual Tesla Wall Connector vs Ohme debate for a moment. The Simpson & Partners Home 7 and Indra Smart LUX are two British-manufactured chargers that most Tesla owners haven't even heard of — and that's a shame, because both offer something the big names don't.

They're priced within £34 of each other (£649 vs £615 for the 10m Indra), both made in Britain, and both OZEV-approved. But they take wildly different approaches to what a home charger should be.

In a nutshell:

• Simpson & Partners Home 7: A beautifully built premium charger with a 10-year enclosure warranty and three-phase support — rare at this price
• Indra Smart LUX: The UK's slimmest smart charger with tank-like IP67/IK10 durability and the deepest smart tariff integration of almost any charger on the market

Does the Simpson & Partners Home 7's 10-Year Warranty Actually Matter?

Ten years. No other home EV charger comes close. The nearest competitor offers five, and most sit at three. That's a bold statement of confidence from a relatively unknown brand.

But read the fine print: the 10-year coverage applies to the anodised aluminium enclosure specifically, not necessarily all internal electronics. That's still meaningful — the enclosure is what takes the brunt of British weather — but it's not the same as a 10-year bumper-to-bumper guarantee. The Indra, by contrast, offers just 3 years standard (5 years for an extra £100), but its IP67 and IK10 ratings mean the hardware itself is built to survive conditions that would void most chargers' warranties anyway. IP67 means submersible. IK10 means you could back into it and it wouldn't flinch. The Simpson's IP54 is fine for rain, but it's a different league of protection.

Smart Tariff Savings: Is the Indra Smart LUX Worth It Over the Simpson?

This is where the Indra pulls clearly ahead. It integrates with over 1,000 UK energy tariffs, including Octopus Agile's half-hourly variable pricing — which can deliver the cheapest possible charging if you're willing to let the charger optimise automatically. The Simpson & Partners Home 7 supports smart tariffs too, but the list is shorter: Octopus Go, OVO Anytime, and EDF GoElectric. That covers the basics, but if you're on Agile or a less common tariff, the Indra is far more flexible.

The Indra also includes solar PV diversion with a CT clamp in the box. If you've got panels on your roof, it'll automatically use surplus generation to charge your car before exporting to the grid. The Simpson lists solar compatibility too, but the Indra's implementation — combined with dynamic load balancing as standard — is more complete. If solar savings matter, check our best EV charger for solar panels guide.

Build Quality and Design: Premium in Different Ways

The Simpson & Partners Home 7 looks and feels expensive. The anodised aluminium construction comes in multiple finishes, including an Accoya wood option that wouldn't look out of place on a Scandi architecture blog. At 5.5 kg and 110mm deep, it's compact but not remarkable in size.

The Indra takes a different approach to premium: at just 78mm deep and 3.6 kg, it's the thinnest tethered smart charger you can buy in the UK. It practically disappears against a wall. No wood finishes or colour options — just a clean, minimal slab with a turbine LED status light. It's less of a design statement and more of an engineering flex.

One practical difference: the Simpson is available as both tethered and untethered. The Indra is tethered only. If you charge multiple EVs with different cables, or simply prefer a cleaner look without a permanently attached cable, the Simpson gives you that choice.

Three-Phase Support: A Niche but Real Advantage for the Simpson

The Simpson & Partners Home 7 can deliver 22kW on a three-phase supply. The Indra maxes out at 7.4kW on single-phase only. For the vast majority of buyers this won't matter — but if you're one of the few with three-phase power, or you're planning a new-build or renovation where three-phase is being installed, the Simpson suddenly becomes one of the cheapest 22kW-capable chargers available. That's a genuinely unusual feature at £649. For broader options, see our best Tesla home charger guide.

Which Should You Buy?

Buy the Simpson & Partners Home 7 if:

• You want the longest enclosure warranty on the market (10 years)
• You have or plan to install three-phase power
• You prefer an untethered socket option
• Premium build materials and distinctive finishes matter to you

Buy the Indra Smart LUX if:

• You want the broadest smart tariff integration (1,000+ tariffs including Agile)
• Solar PV diversion with included CT clamp is important
• You need maximum weather and impact resistance (IP67/IK10)
• A slim, unobtrusive profile is a priority

For most Tesla owners on a single-phase supply, the Indra Smart LUX is the more capable charger. Its tariff integration alone could save you more over five years than the price difference between the two — especially on a variable tariff like Octopus Agile. But if you're drawn to the Simpson's build quality, that extraordinary warranty, or you need three-phase, it's a charger that deserves far more attention than it currently gets.