Ollny Christmas Tree Lights 20m 200 LED outdoor fairy lights (mains powered) with remote and timer
Product description
If you want Christmas lights that feel ready-made for decorating (not fiddly to manage), these Ollny Christmas Tree Lights are built around mains power, a remote, and a timer. The warm white glow is the classic choice for gardens, conservatory displays, doorways and indoor setups where you don’t want cold blue light taking over the vibe.
That said, they’re not a “set and forget” solution in every scenario. Because they’re mains powered and designed for outdoor use, you’ll still need to think about cable routing and where a plug can sit safely.
The essentials
These are outdoor fairy lights for festive displays, with 200 warm white LEDs spread along a 20 m string. The pack is intended for both indoor and outdoor use, covering practical jobs like wrapping around a gazebo, creating a twinkling backdrop for a house frontage, or adding a softer frame to stairs and bedroom decor.
A nice touch in day-to-day use is the remote control and a “memory” function. In practice, that means you can switch modes without standing near the plug, and if you turn them off and back on, they’re designed to remember the last mode you selected.

Key takeaways
The standout part of this design is variety without complexity: 8 lighting modes plus dimmable brightness levels. You can keep it steady for a calmer look, or choose options like in-wave, sequential, chasing flash, fade, flash and combinations when you want more movement.
There are also 3 timer options so the lights can come on automatically every night. If you’ve ever had to remember switching lights on in the dark, this is the sort of “small” feature that can actually make the decoration feel easier.
One more practical detail: the LEDs are described as 31V low voltage, which is relevant for touch and overall comfort during festive season use.


What you’ll notice day to day

The warm white output is adjustable via four brightness levels: 100%, 75%, 50% and 25%. That’s useful because warm white can look either punchy or more pastel depending on the brightness you choose.
A micro example of how this plays out: if you’re setting up lights around an outdoor seating area, you might start at 50% so the glow feels welcoming rather than overpowering. Then, later in the evening, raise it to 75% if you want a brighter “main event” look.
The remote also helps when the lights are hung up high or across a garden feature. It’s not just about convenience, it lets you change the atmosphere as the day goes on.
Tech specs
- Type: Outdoor fairy light string (mains powered)
- Length: 20 m
- Power cable: 3 m (as stated)
- LEDs: 200 bright LEDs
- Colour: Warm white
- Modes: 8 modes (Steady On, In Wave, Sequential, Slo-glo, Chasing Flash, Fade, Flash and Combination)
- Remote control: Yes (mode changes supported)
- Memory function: Yes (retains the last-opened mode)
- Brightness levels: 100%, 75%, 50%, 25% (dimmable)
- Timers: 3 timer options for nightly automatic use
- Waterproof rating: IP44 waterproof (durable for rain and snow conditions, per description)
- Voltage: 31V low voltage (as stated)

Where it shines
These suit people who want a traditional festive look with warm white LEDs and the freedom to change the display quickly. If you’re decorating a garden, house frontage, gazebo or even indoor areas like stairs and bedrooms, the 20 m length is positioned as “enough for outdoor and indoor decorations” for typical home setups.
It also makes sense if you’re shopping for lights for family use, couples or individuals who want more than a basic steady strand. The combination of 8 modes, dimming and timers means you can keep one set installed and still tweak the look across the season.


What to watch out for before buying
Keep in mind that mains powered lights depend on nearby access to a plug point. The stated 3 m power cable will influence where you can realistically place the control end and how you route it.

Also, “outdoor” doesn’t automatically mean every outdoor corner is easy to wire. If your layout has long distances between power and where you want the lights to go, you may need to plan the placement carefully.
Finally, if you dislike changing effects (or prefer always-on steady lighting), the 8 modes and remote will be a bonus, but you might end up using only one or two settings.
Is it worth it?
Worth buying if you’re after warm white outdoor fairy lights that combine a remote, 8 effects, dimmable brightness and 3 timer options—especially if you want less hassle than manually switching lights on and off each evening.
It may not be the best choice if your outdoor setup makes plug placement difficult, because the mains power and 3 m cable length will shape where you can install the lights comfortably.

This is a solid match for typical home Christmas decorating—front garden features, gazebos, house displays, or indoor-to-outdoor festive styling—where you want a bit of variety without needing to tinker.
Mini FAQ


Are these Christmas tree lights suitable for outdoor use?
They’re described as waterproof with an IP44 rating, and intended for indoor and outdoor decoration.
Do they come with a remote?

Yes. The remote is used to change between the 8 lighting modes.
Do they remember the last lighting mode?
Yes, they include a memory function that retains the last-opened mode.
Can you set them to turn on automatically?
Yes, the description states there are 3 timer options for nightly automatic use.
Can you adjust how bright they are?
Yes, brightness can be dimmed across 4 levels (100%, 75%, 50%, 25%).
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