Innr Smart Bulb Colour E27 vs B22: Which Colour Bulb Should You Choose?

Quick answer

Choose the Innr Smart Bulb Colour E27 if your fixtures use the larger Edison screw socket; choose the B22 if they use the bayonet cap common in the UK. Both offer 16 million colours and wireless dimming, but the socket type is the key decision factor. Check your existing lamp holders before buying.

When upgrading to smart colour lighting, the first hurdle is often the socket. Innr offers both E27 (Edison screw) and B22 (bayonet) versions of its colour bulbs, but the range and features can vary between the two. This comparison focuses on the E27 models we carry and explains how they differ from the B22 alternatives you might see elsewhere.

We’ll look at brightness options, fitting compatibility, and what to consider when matching a bulb to your existing fixtures. By the end, you’ll know which socket type suits your home—and which Innr colour bulb delivers the light output you need.

Socket type: E27 vs B22

The most obvious difference is the base. E27 is a 27-millimetre Edison screw, common across Europe and many parts of the world. B22 is a 22-millimetre bayonet cap with two prongs, widely used in the UK and some Commonwealth countries. They are not interchangeable without an adapter, and using the wrong bulb can damage the socket or the bulb.

Innr’s colour range includes both E27 and B22 models, but our current selection focuses on E27 versions like the Innr Smart Bulb Colour E27 800lm and the higher-output Innr Smart Bulb Colour E27 1200lm. If you have B22 fixtures, you’d need to look for the B22 variant or use a socket adapter—though adapters can add bulk and affect how the bulb sits in the shade.

Before ordering, check the base of your current bulb or the socket itself. If it has two prongs, you need B22; if it has screw threads, you need E27. This simple check saves you the hassle of returns.

• E27: screw base, common in Europe and many other regions.
• B22: bayonet base, standard in the UK and some other countries.
• Always match the socket type to avoid damage or poor fit.

Brightness and light output

Within the E27 colour range, Innr offers two brightness levels. The Innr Smart Bulb Colour E27 800lm provides a solid 800 lumens, suitable for most table lamps and medium-sized ceiling fixtures. The Innr Smart Bulb Colour E27 1200lm UK steps up to roughly 1200 lumens, giving you more light for larger rooms or fixtures where you want a brighter presence.

Both bulbs are wirelessly dimmable, so you can adjust the output to suit your mood or task. They also offer tunable white light from warm to cool, plus 16 million colours for accent lighting. The higher-lumen version costs more, but the extra brightness can be worth it in spaces where you rely on a single ceiling light.

If you’re comparing with B22 models, note that not all colour bulbs come in the same brightness options. Always check the lumen rating on the specific product page to ensure it meets your needs.

• 800-lumen bulbs suit lamps and smaller fixtures.
• 1200-lumen bulbs are better for larger rooms or single-light sources.
• Both are dimmable and offer 16 million colours.

Compatibility and control

Innr colour bulbs work with Zigbee bridges, including Philips Hue and other Zigbee-compatible systems. This means you can control them via the Hue app, voice assistants, or third-party platforms. However, you’ll need a Zigbee bridge—it isn’t included with the bulb. This is true for both E27 and B22 versions.

The bulbs are also suitable for voice control when paired with a compatible assistant. Remember that not all features may work with every bridge, but basic on/off, dimming, and colour changes are standard.

When choosing between E27 and B22, compatibility is not the differentiator—both work with the same ecosystems. The real decision is based on your physical sockets.

• Requires a Zigbee bridge, such as Philips Hue.
• Works with voice control via compatible assistants.
• Socket type does not affect compatibility.

Trade-offs to consider

• E27 availability: Innr offers a wider range of E27 colour bulbs, including 800lm and 1200lm options, making it easier to find the brightness you need. If you have E27 sockets, you have more choices.
• B22 compatibility: B22 is standard in the UK, but our current selection does not include B22 colour bulbs. You may need to look for B22-specific models or use an adapter. Check your socket type before ordering.
• Brightness vs. price: Higher-lumen bulbs cost more. The 1200lm version is brighter but priced higher than the 800lm model. Match the lumen output to your room size to avoid overpaying.

Innr colour bulbs at a glance

• Innr Smart Bulb Colour E27 800lm: This Smart Bulb Colour E27 with large fitting lets you operate your existing fixture wirelessly, even when you're not home. It offers 16 million colours and is wirelessly dimmable. A versatile choice for most E27 fixtures, offering full colour control and dimming for everyday use.
• Innr Smart Bulb Colour E27 1200lm UK: The smart light with 16 million colours. In 2-pack. This Smart Bulb Colour E27 with large fitting lets you operate your existing fixture wirelessly, even when you're not home. It provides 1210 lumens for extra brightness. Ideal for larger rooms or when you need more light from a single bulb, while still offering full colour and dimming.
• Innr Smart Bulb Colour E27 800lm UK: The smart light with 16 million colours. In 2-pack. This Smart Bulb Colour E27 with large fitting lets you operate your existing fixture wirelessly, even when you're not home. The UK version of the 800-lumen bulb, designed for the UK market but still uses the E27 screw base.

Which bulb fits your home?

Best for

• Homes with E27 screw sockets, common in Europe and many other regions.
• Users who want the widest choice of brightness levels in colour bulbs.

Not for

• UK homes with B22 bayonet sockets, unless you use an adapter.
• Those who need a specific B22 colour bulb model not currently available.

Choosing between Innr Smart Bulb Colour E27 and B22 comes down to your existing fixtures. If you have E27 sockets, you can pick from 800lm or 1200lm versions to suit your room. If you have B22, look for a B22-compatible colour bulb or consider an adapter. Always verify your socket type first, and you’ll enjoy the full benefits of smart colour lighting without compatibility headaches.