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Sonoff S31 Lite Smart Plug, Smart Outlet Switch: ETL certified for safety
Turn any dumb appliance into a smart one with the SONOFF S31 Lite Smart Plug. Designed for busy households, it lets you control your coffee maker, lamp, or fan from your phone—no hub required. Just plug it in, connect to the eWeLink app, and you're set.
But this plug really shines for parents. Imagine being at the grocery store and suddenly wondering if you left a curling iron on. Instead of panicking, you open the app and turn it off remotely. Or set a timer so your kids' nightlight stays on only for an hour.
It also works with Alexa and Google Home. Say "Alexa, turn off the living room lamp" from the couch. The two-way audio isn't here, but voice commands replace the need to get up. The ETL certification means it meets strict safety standards. No more worrying about overheating or faulty wiring. The S31 Lite gives you control and peace of mind.
Features
- Voice control with Alexa and Google Home
- App remote control anywhere
- Simple setup via eWeLink app
- 8 scheduled/countdown timers
- ETL certified for safety
General specs
- Brand: Sonoff
- Model: S31 Lite
- Seller: Amazon
- ID: B08TNHJH2C
- Brand: SONOFF
- Model: S31 Lite
- Setup: Easy
- Timers: 8 scheduled/countdown
- Power Type: Plug-in
- App Control: eWeLink
- Connectivity: 2.4 GHz WiFi
- Hub Required: No
- Product Type: Smart Plug, Smart Outlet Switch
- Certification: ETL
- Compatibility: Amazon Alexa, Google Home, IFTTT
- First listed by seller: May 19, 2026
If you are interested in more details, you can find full information on the seller's page.
Amazon live offers
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Top live offer
€9.46
Free shipping
New
Third-party seller
FBA
Shippable
Offers updated: 8/31/26
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
Shipping options
Delivery to 
United States
United States
Available
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Sonoff S31 Lite ETL certified for safety
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| Brand | SONOFF | SONOFF | SONOFF | SONOFF | SONOFF | |
| Model | S31 Lite | S40 Lite | S40 | S40 | S31 | |
| Color | ||||||
| Rating |
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| Price | €9.46 | €9.55 | €11.18 | €9.38 | €9.38 | €17.21 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | May 29, 2026 | Jun 24, 2026 | May 29, 2026 | Jun 24, 2026 | Jun 24, 2026 | May 29, 2026 |
| App Control | eWeLink | eWeLink | eWeLink | Yes | ||
| Hub Required | No | No | No | No | ||
| Product Type | Smart Plug, Smart Outlet Switch | WiFi Smart Plug | WiFi Smart Plug | |||
| Energy Monitoring | Yes | Yes | Yes | |||
| Voice Control | Amazon Alexa, Google Assistant | Amazon Alexa, Google Home | Amazon Alexa, Google Home | |||
Sonoff S31 Lite ETL certified for safety
€9.46
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
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