Kasa Smart Light Bulbs, Full Color Changing Dimmable Smart WiFi Bulbs (KL125P2), Multicolor (2-Pack)
Quick take
Kasa’s KL125P2 bulbs are full-color RGB smart LEDs with dimming, plus warm-to-cool white tuning, all controlled through the Kasa app and supported by Alexa and Google Assistant. They’re a strong choice for E26 A19 lamps where you want schedules, remote control, and an automatic circadian-style lighting experience. The key limitation is setup and ongoing use require a 2.4 GHz Wi-Fi network.
Pros and cons
Pros
- Full color range (16 million colors) plus tunable white from 2500K to 6500K.
- Dimmable with scheduling, including time-based and automatic brightness and warmth behavior.
- Control from anywhere via the Kasa app, with voice control using Alexa or Google Assistant.
- Energy monitoring features built into the bulb experience.
Cons
- 2.4 GHz Wi‑Fi only, so it may not work as-is on 5 GHz-only networks.
- Daily on/off control depends on your lamp being powered, and some users find app-based control less convenient than built-in switches.
- Not designed for “music sync” style lighting effects (some buyers look for that capability).
- You may need to connect bulbs individually during setup if you have multiple bulbs.
What buyers think
Across available reviews, buyers consistently highlight easy setup, straightforward app use, and reliable day-to-day control. Many people like using schedules and timers, especially for bedside or porch lighting, and a recurring theme is that the circadian-style behavior can make mornings feel smoother by gradually adjusting brightness and warmth. Review evidence is also positive on basic performance and color changes (including voice control through Alexa and Google Home). Where feedback diverges is mostly about convenience, such as reliance on the app (or the lamp being left on), and feature expectations like music-match effects, which some shoppers were specifically hoping for. Overall, buyer-review evidence is too limited to quantify performance tradeoffs beyond these recurring themes, but the setup and usability storyline appears consistent.
What these bulbs do best
Multicolor effects and tunable white, without a hub
The KL125P2 bulbs combine RGB color changing (marketed up to 16 million colors) with warm-to-cool white tuning from 2500K to 6500K. That means you can switch from cozy, warmer light for evenings to brighter, cooler white for tasks, and you can dim for mood lighting. They are designed for E26 A19 lamp holders, so they fit common household fixtures.
Schedules and “circadian” style lighting for routines
A standout use case in reviews is morning lighting. These bulbs support scheduling and an automatic approach that adjusts brightness and warmth based on time and sunrise or sunset behavior. If you want your bedside or entryway lights to feel less abrupt, the gradual change is the feature people keep coming back to.
Remote control plus voice commands
You can control the bulbs remotely using the Kasa app on iOS or Android, including turning on or off, dimming, and changing colors. Voice control works through Alexa or Google Assistant, which is helpful when you want hands-free operation or quick scene changes.
Energy monitoring you can actually check
These bulbs include energy monitoring features, aimed at helping you keep an eye on real-time usage. That pairs well with scheduling, since automation lets you avoid forgetting to turn lights off.
Key specs that matter for compatibility
- Base and shape: E26 A19 (typical for many lamps and ceiling fixtures).
- Brightness: 800 lumens (marketed as a 60 W equivalent).
- Actual power draw: 9 W.
- Control: App control plus voice control via Alexa and Google Assistant.
- Wi‑Fi requirement: 2.4 GHz only (no hub required).
- Voltage: 100 to 120 V, 60 Hz.
- Color rendering: CRI 90 (listed).
Pros and cons in plain terms
Pros
- Flexible lighting: RGB color + tunable white makes it useful for both decoration and everyday lighting needs.
- Automation: Timers and schedules can reduce manual switching and support routine lighting goals.
- Comfortable morning behavior: Buyers specifically mention the gradual brightness and warmth adjustment for waking up.
- Convenient control options: App remote control and voice control cover most household use cases.
Cons and buyer fit
- 2.4 GHz Wi‑Fi requirement: If your home setup does not include a 2.4 GHz network option, you may need to change router settings before buying.
- Switch convenience tradeoff: Because the bulb sits in a lamp or fixture that must be powered, some buyers want a simpler “physical switch” flow than app-based control.
- Missing certain “party features”: If you’re shopping specifically for music-reactive lighting, this set may not match your expectations.
Who should buy (and who should skip)
Best for
- People who want a smart bulb that can do both RGB color scenes and everyday tunable white lighting.
- Anyone building a schedule-based routine, like gradual morning lights or timed porch lighting.
- Households using Alexa or Google Assistant for voice lighting control.
- Shoppers who prefer no hub installation and control through a dedicated app.
Consider other options if
- You only have 5 GHz Wi‑Fi available and do not want to set up a 2.4 GHz network.
- You need music-sync lighting effects or more advanced scene automation than standard timers.
- You want bulbs that behave like “normal bulbs” with minimal reliance on the app and smart routines.
Bottom line
Kasa’s KL125P2 A19 smart bulbs are a solid pick if you want the flexibility of full color changing plus tunable whites, along with automation features like scheduling and circadian-style brightness adjustments. The most important buying check is Wi‑Fi compatibility, since 2.4 GHz connectivity is required. If that works for your setup, these bulbs look well matched to everyday routines, porch or bedside lighting, and households that enjoy both app and voice control.
View latest price on Amazon: Buy on Amazon
FAQ
Do these Kasa smart bulbs require a hub?
No hub is required. They connect directly to your home Wi‑Fi (2.4 GHz).
Do they work with alexa and google home?
Yes. They support voice control through Amazon Alexa and Google Assistant.
What Wi‑Fi frequency do they support?
They require a 2.4 GHz Wi‑Fi network connection.
Are they dimmable?
Yes, they are dimmable. You can also adjust color and warm-to-cool white brightness in the Kasa app.
What color temperatures can they produce?
They support warm-to-cool white tuning from 2500K to 6500K.
How bright are these bulbs?
They are rated at 800 lumens (designed to replace a 60 W equivalent).
Is energy monitoring included?
Yes. The bulb experience includes energy monitoring so you can view real-time energy usage.
Will they work in outdoor lighting fixtures?
They’re listed for indoor use, but some buyers use them in covered outdoor applications like porch lighting. If you plan to install them outdoors, focus on weather exposure and fixture protection needs.
Specifications
| Product Title | Kasa Smart Light Bulbs, Full Color Changing Dimmable Smart WiFi Bulbs Compatible with Alexa and Google Home, A19, 60 W 800 Lumens,2.4Ghz only, No Hub Required, 2-Pack (KL125P2), Multicolor |
|---|---|
| Category | Tools & Home Improvement > Light Bulbs > LED Bulbs |
| Brand | Kasa Smart |
| Manufacturer | TP-Link |
| Model Name | KL125P2 |
| Model Number | KL125P2 |
| Color | Multicolor |
| Item Weight | 0.31 Pounds |
| Light Type | LED |
| Additional Features | Auto White, Dimmable, Energy Monitoring, Tunable |
| Wattage | 9 watts |
| Bulb Shape Size | A19 |
| Bulb Base | E26 |
| Incandescent Equivalent Wattage | 60 Watts |
| Specific Uses For Product | Lighting |
| Light Color | RGB |
| Voltage | 120 Volts |
| Color Temperature | 6500 Kelvin |
| Indoor Outdoor Usage | Indoor |
| Power Source | Corded Electric |
| Color Rendering Index | 90 |
| Power Consumption | 60 Watts |
| Light Source Type | LED |
| Light Source Wattage | 9 Watts |
| Accepted Voltage Frequency | 100 to 120 Volts and 60 Hertz |
| Control Method | Voice |
| White Brightness | 800 Lumens |
Available variants
Size
- 1000 LM, 4-Pack
- 800 Lumens, 2-Pack
- 800 Lumens, 1-Pack
- 1000 LM, 2-Pack
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