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phoinix | Staff 3.9K Views
Sep 10, 2026 7:05 PM

[Resale] $18* | 4-Pack TP-Link Kasa Energy-Monitoring Smart Plug Mini (Used - Like New) at Amazon

$18

$45

60% off
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Amazon Resale via Amazon [amazon.com] has 4-Pack TP-Link Kasa Energy-Monitoring Smart Plug Mini for $18.
Shipping is free with Prime or on $35+ orders.

Offers [amazon.com]: (on conditions [amazon.com])
  • Like New: $18.00

* Previous Frontpage Deal at $22 with 40 Deal Score and 23 comments

amazon.com/dp/B0B14C719T [amazon.com]

Please report the deal if expired (click report -> expired)
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About the Poster
Amazon Resale via Amazon [amazon.com] has 4-Pack TP-Link Kasa Energy-Monitoring Smart Plug Mini for $18.
Shipping is free with Prime or on $35+ orders.

Offers [amazon.com]: (on conditions [amazon.com])
  • Like New: $18.00

* Previous Frontpage Deal at $22 with 40 Deal Score and 23 comments

amazon.com/dp/B0B14C719T [amazon.com]

Please report the deal if expired (click report -> expired)
My other deals | Other Resale deals

#pfpd

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Sep 10, 2026 10:02 PM
129 Comments
Joined Sep 2011
latenighttechSep 10, 2026 10:02 PM
129 Comments

Our community has rated this post as helpful. If you agree, why not thank

Not stated in the original listing, but this is the EP25 Apple HomeKit variation of this device. If you're in the Apple ecosystem, that's good, but if you're in the original Kasa ecosystem (the KP115 is the energy monitoring version of this plug in that line) than the extra layer of security Apple requires may throw a wrench in your local control scripts. I've personally avoided devices from the Apple HomeKit line for just this reason. Just something to be aware of if it impacts you.

Per Google AI (from Reddit, actually):
KP115 (Older, Stable): The KP115 relies entirely on Kasa's original, reverse-engineered local protocol (JSON over port 9999). This protocol has broad compatibility with older, raw socket implementations and works flawlessly with native Python scripts without needing advanced authentication handshakes.

EP25 (Newer, Strict Authentication): The EP25 utilizes newer hardware revisions (like v2.6+). TP-Link rolled out updated firmware that enforces strict local authentication and encryption protocols. While the main Home Assistant integration handles this natively now, custom local control scripts using older versions of python-kasa frequently break or fail to authenticate with newer EP25 plugs unless the library and code are completely up-to-date.
Last edited by latenighttech September 10, 2026 at 07:03 PM.
7
Sep 11, 2026 1:58 AM
1.3K Comments
Joined Sep 2004
sorta_guySep 11, 2026 1:58 AM
1.3K Comments
Quote from latenighttech View quoted comment :
Not stated in the original listing, but this is the EP25 Apple HomeKit variation of this device. If you're in the Apple ecosystem, that's good, but if you're in the original Kasa ecosystem (the KP115 is the energy monitoring version of this plug in that line) than the extra layer of security Apple requires may throw a wrench in your local control scripts. I've personally avoided devices from the Apple HomeKit line for just this reason. Just something to be aware of if it impacts you.

Per Google AI (from Reddit, actually):
KP115 (Older, Stable): The KP115 relies entirely on Kasa's original, reverse-engineered local protocol (JSON over port 9999). This protocol has broad compatibility with older, raw socket implementations and works flawlessly with native Python scripts without needing advanced authentication handshakes.EP25 (Newer, Strict Authentication)

The EP25 utilizes newer hardware revisions (like v2.6+). TP-Link rolled out updated firmware that enforces strict local authentication and encryption protocols. While the main Home Assistant integration handles this natively now, custom local control scripts using older versions of python-kasa frequently break or fail to authenticate with newer EP25 plugs unless the library and code are completely up-to-date.
So, based on what you are saying, is this a good buy or skip?
Sep 11, 2026 2:09 AM
129 Comments
Joined Sep 2011
latenighttechSep 11, 2026 2:09 AM
129 Comments
Quote from sorta_guy View quoted comment :
So, based on what you are saying, is this a good buy or skip?
Based strictly on the price, it's a great buy if it fits the ecosystem you're in (i.e. Apple HomeKit). If it was the KP115 instead, I would have jumped on it. I love that particular module; I have about a dozen in service and can always use more.
Sep 11, 2026 3:30 AM
6.8K Comments
Joined May 2009
jkloisdafoiwdafSep 11, 2026 3:30 AM
6.8K Comments
Quote from latenighttech View quoted comment :
Not stated in the original listing, but this is the EP25 Apple HomeKit variation of this device. If you're in the Apple ecosystem, that's good, but if you're in the original Kasa ecosystem (the KP115 is the energy monitoring version of this plug in that line) than the extra layer of security Apple requires may throw a wrench in your local control scripts. I've personally avoided devices from the Apple HomeKit line for just this reason. Just something to be aware of if it impacts you.

Per Google AI (from Reddit, actually):
KP115 (Older, Stable): The KP115 relies entirely on Kasa's original, reverse-engineered local protocol (JSON over port 9999). This protocol has broad compatibility with older, raw socket implementations and works flawlessly with native Python scripts without needing advanced authentication handshakes.

EP25 (Newer, Strict Authentication): The EP25 utilizes newer hardware revisions (like v2.6+). TP-Link rolled out updated firmware that enforces strict local authentication and encryption protocols. While the main Home Assistant integration handles this natively now, custom local control scripts using older versions of python-kasa frequently break or fail to authenticate with newer EP25 plugs unless the library and code are completely up-to-date.
This is wrong, local control has nothing to do with homekit support. android Kasa app / home assistant works just fine
Sep 11, 2026 5:29 AM
129 Comments
Joined Sep 2011
latenighttechSep 11, 2026 5:29 AM
129 Comments
Quote from jkloisdafoiwdaf View quoted comment :
This is wrong, local control has nothing to do with homekit support. android Kasa app / home assistant works just fine
Huh? What part is wrong? Care to elaborate? I was just pointing out there are multiple product lines, each with their own local API protocol. And I didn't even mention the most recent, Matter. They all work with the Kasa app, and they all work with Home Assistant. But for those of us that use Kasa devices with older (likely DIY) apps based stricictly on the legacy protocol, these newer, more secure devices do not directly work. And I only refer to this family of devices as "HomeKit" as that is what Kasa calls them, and it's the easiest way to know which which local protocol they use of the three: Legacy, HomeKit, Matter.

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