HYDONG Colour Changing Bulb B22 10W Dimmable (RGBW) with 21-key Remote

If you want mood lighting that you can actually control without getting up every time, HYDONG’s colour changing bulb for B22 fits the bill. It’s built around RGB plus daylight white chips, with modes you can switch using a 21-key remote. On paper, it’s aimed at day-to-day comfort (lighting that changes with your evening) as well as more “performative” effects for parties.

That said, it’s not trying to be a high-end smart system. You’re getting remote control features like timing and colour modes, but the value depends on whether you’ll use those specific functions rather than just needing a simple dimmable bulb.

The essentials

This HYDONG bulb is an RGBW LED light bulb designed for B22 holders. The “RGB + Daylight White” approach means you can move between colourful lighting and a daylight white option (the base info mentions 5700K daylight white chips), so it’s not only about dramatic colours. You also get 12 colour choices for mood lighting, plus Flash and Smooth modes for different atmospheres.

A practical bonus is the dual memory function. When you use the wall switch to turn it on, the bulb can remember the last colour or mode used. There’s also a synchronisation function described for using multiple bulbs in the same lamp setup, designed so that colour rhythm stays consistent when you run the flash/smooth modes.

What you’ll notice in everyday use

Where this bulb feels most useful is in the “set the mood quickly” moments. Imagine you’re winding down in the living room: you switch the bulb on, it recalls the last mode you used (so you’re not restarting from scratch), then you press the remote to move between a smoother colour cycle and a more energetic flash effect.

For gatherings or staged-looking lighting, the Flash mode is positioned as a way to create a stage-like feel for concerts or performances. Smooth mode, meanwhile, is described as automatically cycling colours with a rhythm that’s meant to feel more calm and romantic.

The timing function also targets a very real bedtime scenario: you can auto-off by setting a timer via the remote. The details mention one press, two presses, and scaling up, with the maximum auto-off time listed as up to 23 hours. That’s handy if you like the lighting on while you relax, then fading out without needing to remember.

Key points for decision making

It’s a colour-changing bulb with dimming (the description specifies 10W and that it’s dimmable), and it’s designed to be controlled by a remote. The strongest “buy” case is if you want mood lighting that includes both colour and daylight white, and you plan to use the Flash/Smooth modes rather than leaving it on one static colour.

However, it may not suit everyone. The remote and the modes are only valuable if you’re comfortable using them regularly, and the description doesn’t indicate app control or advanced automation beyond what’s listed. Also, while synchronisation is mentioned for multiple bulbs in the same lamp type, the experience can depend quite a bit on your setup (for example, how many bulbs you use together and how they’re wired).

Tech specs

• Name: HYDONG Colour Changing Bulb B22 10W Dimmable (RGBW) with 21-key Remote Control
• Type: RGBW colour changing LED light bulb
• Format: B22 bulb
• Size: 10W
• Memory: Dual memory function (remembers last colour/mode)
• Daylight White chips: 5700K
• Colour options: 12 colour choices
• Modes: Flash and Smooth
• Timing: Auto-off timer up to 23 hours (remote controlled)

What stands out (and what to be cautious about)

What stands out is the mix of RGB colour plus a daylight white option, along with the memory and synchronisation features. On top of that, the safety/comfort points are quite specific in the description: it mentions no flicker (to protect child vision), no UV or other harmful radiation, and no mercury.

What to be cautious about: the maximum auto-off time is up to 23 hours, but the description doesn’t clarify things like exact timer increments beyond “press once / press twice” behaviour. If you’re the sort of person who wants precise scheduling down to the minute, this may feel more basic than other lighting solutions. Also, “no flicker” is stated, but there’s no detail on brightness range or dimming depth, so if dimming performance is a priority, it’s worth checking the bulb’s dimming behaviour as part of your buying expectations.

Is it worth it?

Worth considering if you want a B22 bulb that covers both everyday lighting (daylight white) and mood lighting (RGB with 12 colour choices), and you’ll use the remote features like Flash/Smooth modes, timing, and the dual memory behaviour. It’s also a sensible pick if you plan to use multiple bulbs in the same lamp setup and care about the colour changes staying in sync.

Not the best choice if you only need a straightforward dimmable bulb and you’re unlikely to use colour modes or the timing function. It may also not be a great match if you expect smart-home control beyond the included remote, because the features described focus on wall-switch memory plus remote operation.

Mini FAQ

FAQ

Does it work with a wall switch? Yes, the description says that when you use the wall switch to turn it on, it can remember the last colour or mode.

Can one remote control more than one bulb? The notes say one remote control can control all bulbs.

What lighting modes are included? The bulb supports Flash and Smooth modes.

Is there an auto-off timer? Yes. The description states you can auto off by setting a timer via the remote, with a maximum up to 23 hours.

Is it suitable for reducing flicker concerns? The description claims no flicker and also mentions no UV/other harmful radiation and no mercury.