# Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64

Kasa Smart KP405 is an outdoor plug-in dimmer for compatible dimmable lights, with app and voice control over 2.4 GHz Wi-Fi. Its IP64 rating and scheduling suit outdoor string or landscape lighting, but the lights must be dimmable and the load must stay within the listed limits.

- [Original product page](https://best-deals.pro/product/kasa-smart-kp405-outdoor-smart-dimmer-plug)
- [View offer](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Kasa Smart
- Model: KP405
- Category: Tools & Garden > Electrical & Plumbing
- Price: 15.99 USD
- Previous price: 22.99 USD
- Discount: 30%
- Price checked: 2026-11-12T11:10:17.581Z
- Rating: 4.3 / 5
- Reviews: 5877

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Adjust brightness remotely with the Kasa app or use Alexa and Google Assistant voice commands.
- Schedule lights by time or sunrise and sunset, and group multiple dimmers and string lights in the app.
- The listing claims IP64 protection against dust and water splashes, not protection against immersion.
- Requires 2.4 GHz Wi-Fi and dimmable lights. The stated maximum is 4 A, with separate listed wattage limits for incandescent and LED/CFL loads.

## Pros

- Provides dimming as well as app-based on/off control for compatible outdoor lights.
- Scheduling and grouping can coordinate outdoor lighting without operating each dimmer separately.
- The listing specifies IP64 weather resistance and a claimed open-area Wi-Fi range of up to 300ft.

## Cons

- Dimming is limited to lights that are themselves dimmable.
- The listed load limits are 4 A maximum and 300W incandescent or 150W LED/CFL, so buyers need to match the light type and load.

## Specifications

### Identity
- Brand: Kasa Smart
- Model: KP405
### Dimensions and installation
- Dimensions listed: 3.15"D x 2.76"W x 1.52"H
- Weight listed: 5.92 ounces
### Materials and protection
- Material listed: Polycarbonate \(PC\)
### Electrical and compatibility
- Maximum amperage: 4 A
- Maximum power for incandescent lights: 300W Incandescent
- Maximum power for LED/CFL lights: 150W LED/CFL
- Supported Wi-Fi: 2.4GHz Wi-Fi only
- Claimed open-area Wi-Fi range: up to 300ft
### Features and certification
- Weather-resistance rating: IP64
- Specification met: Etl Certified
- Voice assistant compatibility: Alexa or Google Assistant
- Warranty listed: 2 Years

## Before you buy

- Keep the plug at least 8 inches above the ground to reduce rainwater splashback, and cover the socket when it is not in use. IP64 is described as protection from dust and splashes, not immersion. The stated Wi-Fi range is for open areas and actual coverage may differ.

## In the box

- Plug-in dimmer with 6-inch cable (Included)
- Clamp (Included)
- Screw (Included)
- Quick start guide (Included)

## A good fit for

- People dimming compatible outdoor string, landscape, holiday, or other dimmable lights from an app or voice assistant.
- Buyers with 2.4 GHz Wi-Fi who want schedules, sunrise/sunset automation, or grouped light control.

## Less suited to

- People whose lights are not dimmable or whose load exceeds the stated limits.
- Setups that require Wi-Fi other than 2.4 GHz or a guarantee of the claimed open-area range.

## Customer feedback

Customer feedback includes praise for setup, dimming, app usability, and scheduling, with Christmas tree lights mentioned as one use. Reports on connectivity are mixed, and the feedback also raises concerns about durability and erratic responsiveness. Those mixed experiences matter for a device intended for scheduled or remote lighting, even though the listing describes app control, grouping, and Wi-Fi operation. Value opinions are divided as well.
- Positive themes: Customer feedback describes setup as easy and highlights dimming and app usability.
- Positive themes: Some customers appreciate setting automatic daily schedules.
- Negative themes: The supplied feedback raises durability concerns, including reports of units stopping after a few months.
- Mixed feedback: Connectivity feedback ranges from successful Alexa integration to connection problems.
- Mixed feedback: Some feedback describes lights switching on and off unexpectedly, and value opinions are divided.

## Frequently asked questions

### Can the KP405 dim any outdoor light?
No. The listing says the connected lights must be dimmable. It also lists a maximum of 4 A, with maximum power of 300W for incandescent and 150W for LED/CFL.
### Does it work with 5 GHz Wi-Fi?
The supplied product details specify 2.4GHz Wi-Fi only.
### Can I control it with voice commands?
The listing names Alexa and Google Assistant compatibility. It also describes control through the Kasa app.
### What does IP64 mean for outdoor use?
The listing describes IP64 as protection against dust and splashes of water. It advises placing the plug at least 8 inches above ground and covering the socket when unused.

## Alternative options

- [GHome Smart Outdoor Smart Plug, Smart Home Wi-Fi Outlet with 2 Sockets, IP64-Rated with Weather-Resistant Covers, Works with Alexa, Google Home & SmartThings, No Hub Required](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)
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- [TREATLIFE 2 in 1 Outdoor Smart Dimmer Plug, 2 Individual Control Sockets, 600W, Compatible with Alexa, Google Home, IP64 Dimmer for Outdoor String Lights, Dusk to Dawn, 2.4GHz WiFi Only](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)
- [Outdoor Dimmer for String Lights 1500W, IP67 Waterproof/150FT Range/Timer Control/3 Prong Outlet for Outdoor LED String Lights & Incandescent Bulbs, Wireless RF Remote Plug-in Dimmer Switch](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)
- [ELEGRP PQR21 Outdoor Smart Dimmer Plug Waterproof IP66, Smart WiFi Plug with 2 Individually Sockets, Compatible with Alexa & Google Assistant, Outdoor Dimmer for String Lights, UL Listed, 1 Pack](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)
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- [ELEGRP PQR22 Outdoor Smart Dimmer Plug Waterproof IP66, Smart WiFi Plug with 2 Individually Sockets, Compatible with Alexa & Google Assistant, Outdoor Dimmer for String Lights, UL Listed, 1 Pack](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)
- [Geeni Smart Wi-Fi in-Wall Outlet, Tamper & Fire Resistant, White, 4-Pack \| 2 Smart outlets per plug, compatible with Alexa & Google Home, app & voice control](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)

## Add-ons

- [Kasa Smart Plug Ultra Mini 15A, EP10P4, Smart Home Wi-Fi Outlet \| Works with Alexa & Google Home, No Hub Required, UP Certified, 2.4GHz Wi-Fi Only, 4-Pack, White](https://best-deals.pro/visit/kasa-smart-kp405-outdoor-smart-dimmer-plug)

## Images

![Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64 — 1](https://best-deals.pro/i/pJ-Am8x_8zqW6emtCbR-LIyr-xjC1rOBYsynTvuZcailqEuxLWUs6BwaE1Ev5dmM2fcQpaDBGwk9bCPd5HZXHgAyW7Y8NMGgdDkbS-kKG58Hhb6aZhezph0a.jpg)

![Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64 — 2](https://best-deals.pro/i/tWQ7hcHtXWS92lzDD9T3xP_3Mz9ofIY6OW9AK8qpmEu03WKBWdEJSLzvjLt5CGYImMIQ4xKnHknGj1p9BkNHdhrpfqdOBOtF278sEBY7GhPe95ekRPxz0rBw.jpg)

![Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64 — 3](https://best-deals.pro/i/6ZanYFnVH2fjI-L3YaoVPAwEkNfo6_xK2hnoSV9p76K3jplrTNM17qgas9ytix9p83_J_y0LKkFquZkjAOCTmZgGMEIGCRg59ZvV8u1sA4TEEkl_.jpg)

![Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64 — 4](https://best-deals.pro/i/YtF3x2ttMVhrKmdkDLkTfIIPEvIcfwXhSuClM-7s6u_xmjmT-qF0Lc3T07EyHHgkMKNfV5zv2JRz4qh7fVmjTcAEiOd0yw9UfyqmnL8vF3m6C4QF3bsUViQ0.jpg)

![Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64 — 5](https://best-deals.pro/i/1d1E1nDVrxKq3N-vzxdwg5B1f2xlWOiqBy-2yaiTiGT7qswA0_4vjMpBXEAe8SJSw2JEt-ANoh5sTH9gSw41hcI2DFjxwqYrb5h4_0lsfnEsyGQCLcoMmDYz.jpg)

![Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64 — 6](https://best-deals.pro/i/-GGLAXTml2e0DFzS_7WWGFKGUU4ivX03lDmSFn9ulzC4uPtH_Vv2J_K0csGin7dne7bHZqL1kpSU63bCzGZOu7UJW40uaHqEAgYWFv2np5NDCw5l6hs2ICXP.jpg)

![Kasa Smart KP405 Outdoor Smart Dimmer Plug, IP64 — 7](https://best-deals.pro/i/aL_p69F_mTV6l2VI7aP3mj0CZcZUPSYfHAEdTgXt-Dk2h3VjUS6lLnjUeYJKBbbMl2r44Swgos7z3ejvAZkmOFwH9hBNjMg0CiBNyWBbMNuRQbDe3mLIjAVc.jpg)