---
product_id: 461752956
title: "Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs"
brand: "refoss"
price: "FREE"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.pt/products/461752956-refoss-smart-light-bulb-alexa-b22-bayonet-wifi-led-bulb
store_origin: PT
region: Portugal
---

# 16 million color options 9W power, 810 lumens brightness WiFi & voice control via Alexa/Google Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs

**Brand:** refoss
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> ✨ Light up your life, your way! 🌈

## Quick Answers

- **What is this?** Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs by refoss
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/461752956-refoss-smart-light-bulb-alexa-b22-bayonet-wifi-led-bulb)

## Best For

- refoss enthusiasts

## Why This Product

- Trusted refoss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Vibrant 16M Colors:** Set the perfect mood for every moment with a palette of 16 million colors.
- • **Effortless Smart Control:** Control your lighting from anywhere with app or voice commands—no more getting up!
- • **Trusted Quality & Support:** Backed by 2 years warranty and responsive customer service for peace of mind.
- • **Energy-Smart & Cost-Effective:** Uses just 9W to deliver brightness equivalent to a 60W bulb—save energy without compromise.
- • **Customizable Brightness & Temperature:** Dimmable from 0 to 810 lumens with warm to cool light (2700K-6500K) for eye comfort.

## Overview

The Refoss Smart Light Bulb is a 9W WiFi-enabled LED bulb with a B22 bayonet base, delivering 810 lumens of dimmable light ranging from warm (2700K) to cool (6500K). It offers 16 million colors to customize your ambiance and supports seamless voice control via Alexa and Google Assistant. Designed for energy efficiency and easy setup, this 2-pack smart bulb set comes with a 2-year warranty and reliable customer support, perfect for modern smart homes.

## Description

Product Description Refoss Smart Devices Smart Bulb 1 Pack Smart Bulb 2 Packs Smart Light Bulb Smart Thermostat Smart Plug Mini Smart Plug Smart Plug 4 Pack !!! Spring Special !!! : Single £5.3 / Twin £9.1 (with 35%-40%coupon) You can control your smart bulbs anytime, anywhere with the internet. Let your voice assistant help you control the device. Set up a scene to control all smart bulbs. Home Automation Customized Light Colors 16 Million Colors (RGBWW), Dimmable Range: 0-810LM, Adjustable Cold/Warm Light: 2700K-6500K. Sunrise & Sunset Want to turn off the lights after bedtime? Simply set sunrise/sunset for the light. Linkage of Smart Home Via the Refoss app, you can realize the linkage of Refoss smart home products. Energy Saving Tips 1.The brightness of a 9W Refoss LED bulb = Brightness of a 60W normal bulb. 2. Make smart bulbs on only when they need to work. Offline Control When the internet is down, you can still use the Refoss app to control the smart devices under the same WiFi. Millisecond-level response speed. Our product offers a better user experience compared to others, with millisecond-level response speed.

Review: Easy to set up and control - Plugged it in, downloaded the app, connected to WiFi. Asks do you want to connect to Alexa and then opened the Alexa app. Took me a little while to set up a group on the Alexa app as the device I wanted to use it with was originally set up in my sons old house, but after a quick reset I managed it just fine. Add the lightbulb and echo dot to a group and can now turn the light on and off with a simple request. Can also set it to auto come on/turn off at dusk and dawn so if you’re away or working then this would be great for added security. You can change the colours and the brightness, there’s a daylight option and you can have it set to warm white or cool white. This can all be done in either the Alexa app or the Refoss app. Tried to dim the lights with Alexa voice control but it didn’t really work. Only bought the 1 to try but will be updating all the lightbulbs around the house as I have kids and they love turning lights on yet haven’t mastered that the switch turns off too!
Review: Excellent choice - Arrived on time. Very easy to install and use. Excellent choice.

## Features

- 【Remote Control 】Do you like me who don't want to get up and turn off the light? There are two remote control methods for Refoss smart alexa bulbs: remote control via free app "Refoss", or voice control via Alexa(Echo, Echo Dot), Google Assistant(Home, Mini). Only Taking 30s from setup to operation. Note: only works with 2.4GHz WiFi.
- 【Adjustable Light for Eye Comfort】Troubled by the light not being bright enough at work? Is the light too bright affecting sleep? Our dimmable RGBCW smart bulbs allow you to have the most comfortable light at any time, the dimmable range: 0-810LM, the temperature of the dimmable light: warm light 2700k-cold light 6500k.
- 【16 Million Colors for Perfect Ambience】16 Million colors to create the perfect ambience to amaze your friends! Perfect for family gatherings, birthday parties, family movie nights, personal leisure time, dates and more, trust me you will have occasions where you really need this!
- 【Saving Energy and Money】My dear, saving energy can start with smart led bulb. Our alexa smart bulb is 9W (equivalent to the brightness of a regular 60W bulb), Estimated Energy Cost: 0.0018/hrs.
- 【2 Years After-sales】Refoss is a brand with ten years of experience in producing smart light bulbs, so we understand any problems that may arise during use. If you have any questions, please contact email in the box, we will give you the most satisfactory solution within 24 hours.
- Included components: 2 * Smart bulb
- Power source type: AC/DC
- Unit count: 2.0
- Efficiency: F

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B3D9S5RC |
| Accepted Voltage Frequency | 100 to 240 Volts and 50 Hertz to 60 Hertz |
| Average Life Span | 50000 Hours |
| Best Sellers Rank | 3,611 in Lighting ( See Top 100 in Lighting ) 20 in Wi-Fi Bulbs |
| Brand | Refoss |
| Brand Name | Refoss |
| Bulb Base | B22D |
| Bulb Shape Size | A19 |
| Bulb base | B22D |
| Bulb shape size | A19 |
| Color Rendering Index (CRI) | 80 |
| Color Temperature | 6500 Kelvin |
| Colour | Colour-changeable |
| Connectivity Protocol | Wi-Fi |
| Connectivity Technology | Wi-Fi |
| Control Method | App, Remote, Voice |
| Controller Type | Amazon Alexa, Google Assistant |
| Customer Reviews | 4.3 out of 5 stars 1,875 Reviews |
| EU Energy Efficiency Label | Efficient |
| Incandescent Equivalent | 60 Watts |
| Included Components | 1 * Instructions, 2 * Smart bulb |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions W x H | 6W x 11.5H centimetres |
| Item Shape | Arbitrary(A) |
| Item Type Name | smart light bulb |
| Item Weight | 110 Grams |
| Light Color | 16 Million colors, Cold white light , Warm white light |
| Light Output Maximum | 810 Lumens |
| Light Source Wattage | 9 Watts |
| Light Type | LED |
| Light type | LED |
| Manufacturer | Refoss |
| Manufacturer Part Number | MSL120 |
| Manufacturer Warranty Description | 2 year warranty. |
| Material Type | Plastic |
| Model Name | Light Bulb,LED Bulb,Smart Bulb |
| Model Number | MSL120 |
| Number of Items | 1 |
| Package Quantity | 1 |
| Power Consumption | 9 Watts |
| Power Source | Corded Electric |
| Smart Home Compatibility | Smart Home Compatible |
| Special Features | Colour Changing, Dimmable, Energy Efficient, Remote Control, Voice Control |
| Special feature | Colour Changing, Dimmable, Energy Efficient, Remote Control, Voice Control |
| Specific Uses | Photography |
| Specification Met | Compliant with FCC, UL, CE, RoHS, WEEE, ErP, UKCA, ErP |
| Style Name | Works with Alexa |
| Theme | daily lighting, dancing lights, happy hour lights, night lights, party lights |
| Type of Bulb | LED |
| Unit Count | 2.0 count |
| Voltage | 240 Volts |
| Wattage | 9 watts |
| White Brightness | 810 Lumens |

## Product Details

- **Brand:** Refoss
- **Bulb shape size:** A19
- **Light type:** LED
- **Special feature:** Colour Changing, Dimmable, Energy Efficient, Remote Control, Voice Control
- **Wattage:** 9 watts

## Images

![Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs - Image 1](https://m.media-amazon.com/images/I/61DAqH8UiIL.jpg)
![Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs - Image 2](https://m.media-amazon.com/images/I/61-CFK7EvWL.jpg)
![Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs - Image 3](https://m.media-amazon.com/images/I/61iHg+-ZtcL.jpg)
![Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs - Image 4](https://m.media-amazon.com/images/I/71kEzbUrO3L.jpg)
![Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs - Image 5](https://m.media-amazon.com/images/I/61swgaEGWML.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Do these work on 5ghz wifi?**
A: No. It only works on 2.4ghz . However I have a dual band WiFi and it connected to the 2.4 part with no problem.

**Q: How dim is the dimmest setting? I bought another brand for my child's room and wanted it as dim as a night light but even 1% is too bright.**
A: I am quite happy with the levels of dimming. But I think it's all a matter of perception. May I suggest just getting a night light instead of you want very low levels of dimming.

**Q: What's the furthest distance you can be from the bulb to switch it on from your phone?**
A: To switch the bulb on you need an internet connection. Then using the app or Alexa the bulb can be controlled. So the answer is not distance but having an internet connection.

**Q: Can the app sync with music (ie via the phone microphone)?**
A: There is no option in the app for that

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to set up and control
*by A***L on 16 April 2024*

Plugged it in, downloaded the app, connected to WiFi. Asks do you want to connect to Alexa and then opened the Alexa app. Took me a little while to set up a group on the Alexa app as the device I wanted to use it with was originally set up in my sons old house, but after a quick reset I managed it just fine. Add the lightbulb and echo dot to a group and can now turn the light on and off with a simple request. Can also set it to auto come on/turn off at dusk and dawn so if you’re away or working then this would be great for added security. You can change the colours and the brightness, there’s a daylight option and you can have it set to warm white or cool white. This can all be done in either the Alexa app or the Refoss app. Tried to dim the lights with Alexa voice control but it didn’t really work. Only bought the 1 to try but will be updating all the lightbulbs around the house as I have kids and they love turning lights on yet haven’t mastered that the switch turns off too!

### ⭐⭐⭐⭐⭐ Excellent choice
*by S***L on 27 January 2026*

Arrived on time. Very easy to install and use. Excellent choice.

### ⭐⭐⭐⭐ Stopped working with Alexa
*by A***R on 30 December 2025*

Mine worked fine until today when I joined prime , now they just won’t connect to the alexa dot speaker, tried most of the day, but just won’t connect , works fine in the Refoss app tho.

## Frequently Bought Together

- Refoss Smart Light Bulb Alexa b22 Bayonet WiFi Led Bulb 9W with Colour Changing Light, 810LM Dimmable (Warm/Cool) Smart Bulbs Works with Alexa(Echo and Echo Dot), Google Home - 2 Packs
- Echo Dot (Newest gen) | Big vibrant sound Wi-Fi and Bluetooth smart speaker with Alexa | Deep Sea Blue
- Echo Pop (Newest gen) | Full sound compact Wi-Fi and Bluetooth smart speaker with Alexa | Glacier White

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-06*