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We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuoteWhich is better for your home? We install both. Here's our honest, spec-by-spec comparison based on real installation experience.
Both the SPAN Smart Panel and Lumin Smart Panel are excellent choices. The SPAN Smart Panel is better if you prioritize homeowners who want per-circuit control from their phone, while the Lumin Smart Panel shines for adding smart panel features without replacing your existing panel. For most homeowners, either product will serve you well — your choice should come down to which features matter most to your household.
SPAN · Smart Panel
Lumin · Smart Panel
| Spec | SPAN | Lumin |
|---|---|---|
| Circuits | 32 spaces | 18 managed circuits |
| Main Breaker | 200A | Uses existing panel breaker |
| Monitoring | Per-circuit, real-time | Per-circuit, real-time |
| Control | Per-circuit on/off + priority settings | Per-circuit on/off + priority settings |
| Display | Built-in touchscreen | App-only (no built-in display) |
| Connectivity | Wi-Fi + Bluetooth | Wi-Fi + Bluetooth |
| Compatibility | Tesla Powerwall, Enphase, Franklin, SolarEdge | Tesla Powerwall, Enphase, Franklin, SolarEdge, Generac |
| Dimensions | 36.4 x 15.9 x 5.4 in | 24.0 x 14.0 x 5.0 in |
| Weight | 80 lbs | 35 lbs |
We evaluate each product across the metrics that matter most to homeowners.
Both offer 10-year warranties.
Lumin Smart Panel is more affordable at $5,000-8,000 installed vs $6,500-10,000 installed.
Our crew rates the SPAN Smart Panel higher at 9/10 vs 8/10.
SPAN panel replaces your existing electrical panel, so this is a full panel swap. Our electricians typically complete the install in 6-8 hours. We move every circuit from the old panel to SPAN, label everything in the app, and set up backup priorities. The result is a fully intelligent panel where you can see exactly what's using power and remotely control any circuit.
Lumin installs alongside your existing electrical panel — no panel swap required. Our electricians wire the circuits you want to manage through the Lumin module, typically in 3-4 hours. This is a big advantage over SPAN when the existing panel is in good shape and doesn't need replacement. We select the 12-18 most important circuits (fridge, lights, well pump, HVAC, etc.) for smart management. The app-based control works well, though we miss SPAN's built-in touchscreen.
Both the SPAN Smart Panel and Lumin Smart Panel are excellent choices. The SPAN Smart Panel is better if you prioritize homeowners who want per-circuit control from their phone, while the Lumin Smart Panel shines for adding smart panel features without replacing your existing panel. For most homeowners, either product will serve you well — your choice should come down to which features matter most to your household.
Our energy advisors can help you decide between the SPAN Smart Panel and Lumin Smart Panel based on your specific home, budget, and energy goals.
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