Devices that still work when the internet doesn't.

Lighting & Electrical / wall switch

Lutron SC-1PS

D0 No Radio — No radio at all. It cannot phone home.

The unplug test

This is a paddle connected directly to the circuit it switches. There is no chip in it to lose contact with anything, so a dead router changes nothing about how the lights in the room behave. It turns them on and off the same way a switch has since switches were invented.

Why this tier: A plain single-pole on/off wall switch in Lutron's Diva line — a mechanical paddle switch with no dimming circuit, no radio, and nothing to configure. The manufacturer's own installation documentation describes only a traditional hardwired installation, with no app, account, or wireless feature anywhere in the procedure, and Lutron's FCC grantee code (JPZ) is well populated with wireless switch/dimmer grants while none exists for this model.

Specifications

Account requirednone
Works offlinefully
Forced firmware updatesno
Radiosnone
FCC IDno intentional-radiator grant found
Local controlnone
Phones homenone
Parts availableunknown
Availabilityin stock
Price bandunknown
Vendor risk 0 / 3

Where to buy

Open questions

Sources

Class A is primary (manual, FCC filing, teardown). Class B is corroborated community reporting. Class C is never sufficient alone.

History

Last verified 2026-09-03 — 3 days ago.