Choosing between the Lectron V-Box (NACS) and the Tesla Wall Connector (Gen 3) comes down to a few specific differences in power, connector type, smart features and price. Here is a data-driven breakdown to help you decide which Level 2 home charger is the right fit for your EV and your garage.
Quick verdict
Both are solid Level 2 home chargers, so the right pick depends on your situation. Choose the Lectron V-Box (NACS) if you want native NACS charging on a budget. Choose the Tesla Wall Connector (Gen 3) if you drive a Tesla or another NACS vehicle and want the cleanest plug-and-go setup.
Specs side by side
| Spec | Lectron V-Box (NACS) | Tesla Wall Connector (Gen 3) |
|---|---|---|
| Max power | 48A / 11.5 kW | 48A / 11.5 kW |
| Adjustable amperage | adjustable | fixed (set by circuit) |
| Approx. range/hour* | ~40 mi/hr | ~40 mi/hr |
| Connector | NACS | NACS |
| Installation | Hardwire or NEMA 14-50 plug | Hardwire only |
| Cable length | 20 ft | 24 ft |
| Smart / app | Yes | Yes |
| Certifications | ETL | UL |
| Warranty | 1 yr | 4 yr |
| Approx. price (USD) | $350-450 | $475-550 |
*Range-per-hour is an approximate estimate (~3.5 miles per kWh) and depends on your specific EV and its onboard charger rate.
The key differences that actually matter
- Both deliver the same 11.5 kW, so real-world charging speed is a wash – the decision comes down to connector, features, and price.
- On price, the Lectron V-Box (NACS) is the more affordable pick (around $350-450 vs $475-550).
- Tesla backs the Wall Connector (Gen 3) with the longer warranty (4 years).
Lectron V-Box (NACS): who it is for
One of the cheaper native-NACS units – no adapter needed for Tesla/NACS EVs. Shorter warranty (1 yr) than the majors. Good budget NACS option. Choose it if you want native NACS charging on a budget.
Tesla Wall Connector (Gen 3): who it is for
Up to ~44 mi/hr on Tesla vehicles. Hardwire only (no plug version). Power Sharing lets multiple units share one circuit. 4-year residential warranty is among the longest. Choose it if you drive a Tesla or another NACS vehicle and want the cleanest plug-and-go setup.
Which should you buy?
Both are solid Level 2 home chargers, so the right pick depends on your situation. Choose the Lectron V-Box (NACS) if you want native NACS charging on a budget. Choose the Tesla Wall Connector (Gen 3) if you drive a Tesla or another NACS vehicle and want the cleanest plug-and-go setup. Before you buy either, check two things: your EV maximum onboard AC charging rate (there is no point paying for 11.5 kW if your car caps out lower), and whether your electrical panel can support the required circuit – a 48A charger needs a 60A breaker, and a 40A charger needs a 50A breaker.
FAQ
Is the Lectron V-Box (NACS) or Tesla Wall Connector (Gen 3) faster?
They charge at the same 11.5 kW, so speed is identical in practice.
Which connector do these chargers use?
Both use the NACS connector, so connector type is not a deciding factor between them. Most non-Tesla EVs in North America use J1772, while Teslas and newer EVs use NACS.