This is a bulb review! Not the most exciting gadget or new technology in a bulb, or is it! This is one product I won’t be keeping, why? Already every visitor that has looked at this bulb has said WOW I want it. Someone will just take it or I will perhaps give it to one, Visitors have looked how simple to use,setup and the savingas compared to a standard bulb.

(Reduce energy use up to 80%) The dimmable option was also a hit. Overview  – Sonoff B1 is white and colourambiance dimmable LED bulb with E27 screw base. The dimming led lamp can be dimmed or brighten via iOS/Android App. With the App, users can select White, then the light will become white ambiance, they can set colourtemperaturefrom cold to warm and change the brightness from 1%-100%.If they select colour,they can change colour spectrum of the RGB bulbs to favourite atmosphere.



There are four available scenes for the dimming LED bulb: rest, reading, party and casual. The Sonoff B1 E27 colourLED bulb is compatible with Amazon Alexa (Amazon Echo, Echo Dot, Tap). Users can ask Alexa to dim or brighten, or adjust the coloursof the led light bulb.

I did not have the E27 screw baseon my lighting, but picked up a BNC to E27 screw base adapter easily and cheaply.

Product description Dimmable brightness Works with google Nest ,see more below.

•Works with amazon Alexa (amazon echo and amazon dot)

•Works with google home


•Lamp Base: E27

•Rated Power: 6W

•Typical Lumen Output: 600lm

•Beam Angle: 120 Degree typical

•Colour Temperature: 2800K-6500K & RGB full colour

•Dimmable: Yes (via app/Amazon Echo/Google Home)

•Wireless Standard: WiFi 2.4GHz

•Rated Input Voltage: 90-260V AC 50/60Hz

•Stand-by (Light off) power: 0.5W Max•Operating Humidity: 5%-90% RH

•Operating Temperature: 0ºC~ 40ºC (32°F ~ 104°F )

•Storage Temperature: -20ºC~ 80ºC (-4°F ~ 176°F )

User guide link:

User guide link:

Bulb size:62mm*115mm.Package includes: •1 X Sonoff B1 Wifi RGB LED LampNoHubRequired–Connect the bulb directly to your Wi-Fi at home Manage Remotely–Control your lights from anywhere with your tablet or smartphone the free eWeLinkapp (iOS,Android)

Colour Changing  Hue–Fine-tune colours for every occasion and adjust brightness as well as light appearance from softwhite(2800k) todaylight(6500k)

VoiceControl–Pair to Amazon Alexa and to enable voice control

CircadianMode– Dynamically adjust light intensity and temperature to mimic natural light patterns

SaveEnergy– Reduce energy use up to 80% without brightness or quality loss compared to a 60W incandescent bulb


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Compatibility–Compatible with Amazon Alexa,Google Home App -Set up via the appEWelink is straight forward download the app &follow the instructions. The initial setup mustbe closeto the Wifi router initially. Once set up this can be moved accordinglyaround the house. This can also be linked to the Sonoff Touch, Luxury Wall Touch Switch, using this capacitance touch as an alternative to your smartphone.

This is a product which ties in with Smarthomes and I would expect to see more product like this in the future. Certainly,comingup to Christmas as a different type of present, this could be an option.


By brendanlahert

20 years’ experience in the commercial technical industry. Interested in technology. Certified ITIL v3 Service Management, Project Management Prince 2, Six Sigma.