Indra Smart LUX vs EVEC VEC03: £246 for build, brains, or both

The £246 between cheap and considered

The EVEC VEC03 at £369 is the cheapest OZEV-approved smart charger you can buy in the UK. The Indra Smart LUX at £615 is £246 more — a gap wide enough to deserve scrutiny. Both deliver 7.4 kW, both mount on a wall, both charge a Tesla at the same speed. The difference is everything around the electrons.

• EVEC VEC03 — the entry point. £369, built-in RCD, basic app scheduling, no smart-tariff integration. A charger that charges.
• Indra Smart LUX — the engineered option. £615, IP67 + IK10, solar diversion, integration with 1,000+ tariffs, 78 mm slim. A charger that thinks.

Where the money goes

Start with what you can touch. The Smart LUX is 78 mm deep and weighs 3.6 kg — the thinnest tethered smart charger on the market. The VEC03 is 105 mm deep, 5.01 kg, and its IP rating is a small mess: EVEC's own documentation quotes IP54, IP55, and IP65 in different places. The Smart LUX is rated IP67 and IK10 — submersible and impact-tested. If your charge point sits on an exposed driveway, that distinction is not academic.

Cable length matters too. The Smart LUX ships with a 10-metre cable at £615 (a 6-metre version is available from £670 — confusingly, more expensive because it's a different SKU bundle). The VEC03 comes with 5 metres, the shortest tethered cable in the catalogue. Five metres is enough if the charger sits beside where you park. It is not enough if it doesn't.

Both chargers include PEN fault protection inside the unit, which trims £100–£150 from a typical install. That narrows the real-world gap slightly — but the Smart LUX also includes an SPD, pushing its install saving a touch further.

Smart tariff integration — the divide that matters most

This is where the two chargers stop being comparable. The VEC03 has no direct smart-tariff API. It is not on the Octopus Intelligent Go compatible list. It cannot talk to OVO Charge Anytime. Its app offers scheduled charging, but customer reports flag intermittent reliability over Wi-Fi. If you're on a flat-rate deal or a simple two-rate tariff like Octopus Go — where you just need the charger to start at 00:30 and stop at 05:30 — the VEC03 can manage that, in principle. Whether it manages it every night is the question the app reviews keep asking.

The Smart LUX claims integration with over 1,000 UK energy tariffs, including half-hourly scheduling for variable rates like Octopus Agile. On Agile, where prices move every 30 minutes and the cheapest slots shift nightly, a charger that tracks them is not a luxury — it is the mechanism by which you pay 5p/kWh instead of 24p. Over 3,000 kWh a year of home charging, the difference between a dumb schedule and a half-hourly optimiser can easily exceed £150. The £246 gap pays for itself within two years, often less.

Solar owners face the same split. The Smart LUX includes a CT clamp for PV diversion out of the box. The VEC03 supports solar integration via a CT clamp sold separately — but without the tariff-aware logic to blend grid and solar intelligently.

For buyers who want tariff smarts but find the Smart LUX too dear, the Ohme Home Pro at £535 sits between the two — £80 less than the Indra, with a built-in 4G SIM and strong tariff integration. That comparison has its own page.

The OZEV grant changes the arithmetic

Both chargers are OZEV-approved. For eligible renters and flat owners, the £500 grant covers the VEC03's £369 unit price outright and contributes toward installation costs too. On the Smart LUX, the same grant brings the unit cost down to £115 — making the effective gap between the two chargers just £115 rather than £246. At that point, the Indra's build quality, tariff integration, and solar diversion become considerably easier to justify.

The verdict

Buy the EVEC VEC03 if:

• Your budget is hard-capped and you're on a flat-rate or simple off-peak tariff
• You don't have solar panels and don't plan to switch to a variable tariff
• You're grant-eligible and want the lowest possible total outlay — the £500 OZEV grant covers the unit and chips into the install

Buy the Indra Smart LUX if:

• You're on or moving to a variable tariff like Octopus Agile and want half-hourly optimisation
• You have solar PV and want built-in diversion without buying extras
• Your charger will live on an exposed wall where IP67 and IK10 ratings earn their keep

The VEC03 is the cheapest way onto a compliant home charger. That is a real virtue for the right buyer. But £246 buys a significant leap in durability, tariff intelligence, and long-term running cost — and if the OZEV grant applies to you, the leap shrinks to £115. For most buyers who plan to keep their charger beyond the warranty period, the Smart LUX is the sounder investment.