Cellular-connected signage you control from anywhere — schedule colours, brightness and on/off times from your phone. Built-in 4G, no Wi-Fi needed.

| Connectivity | 4G LTE cellular module (global bands) |
| Control | iOS/Android app + web dashboard |
| Features | Schedule, color, brightness, on/off, diagnostics |
| Alerts | Power failure, LED fault, tamper detection |
| Power | Standard AC, with usage monitoring |
| Security | Encrypted TLS, device certificate auth |
| Minimum order | 1 piece |
| Production | 15-20 days |
| Proof | App demo access |
| Shipping | Express 7–10 days · Air ~10 days · Sea 40–65 days |
| Warranty | 2yr electronics |
| Payment | 50% deposit, 50% before shipping |

When you buy from a trading company, you pay a middleman and wait on someone else's production line. When you buy from SignLumi, you talk directly to the factory that cuts, welds, assembles and wires your signs.
No — the module has its own 4G connection, so it works anywhere with cellular coverage. The SIM comes pre-installed.
About $5/month covers all control and diagnostics (50MB, more than enough). Billed annually or bundled.
Yes — the dashboard shows all your signs in one screen, with global or per-location settings.
Send us your logo and dimensions — get a free quote within 24 hours.