Kasa LED Smart WiFi Alexa Dimmable A19 Light Bulb

Last updated date: September 3, 2020

DWYM Score

8.4

Kasa LED Smart WiFi Alexa Dimmable A19 Light Bulb

Why Trust DWYM?

DWYM is your trusted product review source. Along with our in-house experts, our team analyzes thousands of product reviews from the most trusted websites. We then create one easy-to-understand review. Learn more.

Don't Waste Your Money Seal of Approval
Look for the DWYM seal for products that are the best in the category.
Show Contents

We looked at the top Dimmable Lightbulbs and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Dimmable Lightbulb you should buy.

Update as October 7, 2020:
Checkout The Best Dimmable Lightbulb for a detailed review of all the top dimmable lightbulbs.

Overall Take


In our analysis of 21 expert reviews, the Kasa LED Smart WiFi Alexa Dimmable A19 Light Bulb placed 7th when we looked at the top 8 products in the category. For the full ranking, see below.

From The Manufacturer

Dimmable Kasa Smart’s dimmable light bulb has a dimming range from 1 percent to 100 percent; Set the right brightness for any mood or activity; Turn your bulb to full brightness to get your Kids up in the morning or dim it enough for them to fall asleep at night

Expert Reviews

Expert Summarized Score

8.0
3 expert reviews

User Summarized Score

9.2
2,966 user reviews

What experts liked

I had no setup troubles during my review of all three bulbs; everything worked seamlessly.
- TechHive
This Kasa Smart light bulb Alexa can dim from 1% to 100%. This allows you to regulate the amount of light that you needed in your room.
- The Genius Review
Combines reliable dimming ability, superior light, and versatile "smart" technology. By far the best dimmable option available today.
- BestReviews

What experts didn't like

All in all, it’s awfully overdone considering we’re talking about a light bulb, which is not a piece of hardware I typically want to draw attention to itself unless it has nifty filaments to showcase
- TechHive
Pricey, considering you only get one bulb
- BestReviews

An Overview On Dimmable Lightbulbs

Dimmable lights support a reduction in energy consumption and prime mood lighting in your home. To utilize this type of lighting, you must have a dimmable light switch installed and compatible light bulbs. While installing a non-dimmable bulb in a dimmable circuit may cause damage to the bulb or circuit, a dimmable bulb in a non-dimmable circuit will work just fine — it will just run at an unadjustable 100% output. Light bulbs are clearly marked as dimmable or non-dimmable on their packaging or ordering website.

There are as many dimmer-compatible light bulbs available for sale as standard bulbs, with variations in type, wattage, size, style and color of lighting. Like adjusting the water pressure on a facet, incandescent bulbs or lights with filaments are the easiest to dim (it’s a matter of lowering the power supplied to the filament using the dimmer switch). Florescent lights are commonly not dimmable due to the cost of dimmer-compatible ballasts, while compact fluorescent lights (CFL) that are fitted with their own ballast and standard screw bases are (check the manufacturers’ instructions to make sure).

Light-emitting diodes (LED), which uses 75 percent energy and last 25 times longer than traditional incandescent bulbs, are another popular option. While LEDs are generally priced higher than incandescent ones, they cost less to operate and don’t have to be replaced near as often, saving you cash over the lifetime of the bulb. But your dimming module’s compatibility with LED bulb determines if and how well the system works, so be aware of your dimmer manufacturer’s requirements.

The Dimmable Lightbulb Buying Guide

  • Do not install a non-dimmable LED or filament light bulb in a dimmable circuit.
  • LEDs have a lower dimming range than incandescent lightbulbs.
  • The dimming performance of an LED light is regulated by the capability of the built-in driver or circuitry of an LED and the compatibility of the dimming system. A few functionality issues to look out for that may occur when a dimmer is connected to an incompatible LED bulb include no visible light output, light output that doesn’t match the movement of the dimmer switch and flickering.
  • Most LED light bulbs on the marketplace are dimmable, if you are using a compact fluorescent light (CFL) or LED dimmer.