Published: 18 April 2025
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Looking to upgrade your lighting without spending a fortune? Smart light bulbs have become more affordable than ever. This 2025 guide highlights the 5 cheapest smart light bulbs for UK homes—offering app control, voice assistant compatibility, and custom lighting at budget-friendly prices.
💡 1. Tapo L510B WiFi Smart Bulb
The Tapo L510B offers exceptional value for money with dimmable white light, WiFi connectivity, and Alexa/Google Assistant compatibility—all without requiring a hub. It’s easy to set up and perfect for everyday lighting in bedrooms or living rooms. The Tapo app allows scheduling, remote control, and even “Away Mode” automation.
- Dimmable warm white light (806 lumens)
- WiFi connectivity – no hub needed
- Alexa and Google Assistant compatible
- App-based scheduling and timers
- Energy-efficient 9W LED bulb
💡 2. Brennenstuhl Connect Smart Bulb SB 400 E14
Compact and stylish, the Brennenstuhl Connect SB 400 E14 is ideal for smaller fixtures in the UK. It supports both RGB colour and tunable white light, and works with Alexa and Google Assistant. Setup is straightforward via the Brennenstuhl app, making it a great choice for colourful accent lighting on a budget.
- E14 base for compact light fixtures
- RGB + Tunable White (2700K–6500K)
- Control via app or voice assistants
- No hub required – WiFi ready
- Timer and scene automation support
💡 3. TCP Smart Wi-Fi LED Lightbulb Classic E27
The TCP Smart Classic E27 bulb offers both full RGB and tunable white control, giving you complete flexibility over your home’s ambience. It supports Alexa and Google Assistant and requires no hub—just plug it in, connect to WiFi, and control it via the TCP Smart app or by voice.
- Full RGB colour + white light tuning
- Works with Alexa & Google Assistant
- Bright 806 lumens output
- E27 base – standard UK screw fitting
- No hub required – app setup in minutes
💡 4. Amazon Basics Smart A60 Dimmable LED Bulb
Built specifically for Alexa, the Amazon Basics A60 smart bulb is a warm white, dimmable LED light that offers seamless integration with your Amazon ecosystem. It’s ideal for users who want reliable, voice-controlled smart lighting with zero setup complexity and no need for a hub or third-party app.
- Designed for Alexa – no extra app needed
- Dimmable warm white (2700K)
- 806 lumens – equivalent to 60W
- E27 standard fitting
- No hub required – WiFi ready
💡 5. Refoss Smart Light Bulb B22 Bayonet
One of the best budget smart bulbs with a B22 bayonet fitting, the Refoss Smart Bulb delivers full RGB colour control, white temperature adjustment, and powerful app features. It works with Alexa and Google Assistant, making it a great value option for UK households using bayonet cap fixtures.
- Supports over 16 million colours
- Adjustable white tones (2700K–6500K)
- Voice control via Alexa or Google
- B22 bayonet fitting – UK compatible
- App control with timer & scheduling
🛒 Final Thoughts
All five smart bulbs featured in this guide offer exceptional functionality at budget-friendly prices. Whether you prefer voice control, colour lighting, or simple app-based scheduling, there’s a smart bulb here that fits your needs and your wallet. Start small and scale your smart lighting setup with confidence in 2025!