NETTA Christmas Tree Lights: 200 LED warm white fairy lights, 20m lit length (10cm spacing) with 8 modes
Product description
Quick overview
If you’re after plug-in Christmas tree lights that look good from a bit of distance and are genuinely easy to set up, NETTA’s 200 LED warm white fairy light set is built for that straightforward job. It’s designed to give a full festive glow with bulbs spaced 10cm apart, and you can switch between 8 lighting modes using a button on the plug adapter.
On paper, it also covers the two common needs people have at this time of year: using the lights indoors (around trees, windows, mantels) and outside (in a garden or for an outdoor party display). The main trade-off is that it’s “mains-powered” rather than battery-operated, so you’ll want a sensible power source nearby.
What matters most (and what you’ll notice)

Where these lights make sense is the overall visual: warm white LEDs with a clear cable, plus 200 bulbs across a 20m lit length. The 10cm bulb distance is key here—densely spaced fairy lights generally look more ‘filled in’, especially when wrapped around a tree shape or draped along a display. If you’ve ever used lighter sets and felt the gaps looked a bit obvious, this is the opposite direction.
The other thing you’ll likely notice day to day is the control. Rather than reaching for switches on the cable, the lighting effects are managed from the plug adapter. And there’s a memory function, which is handy if you turn them off and back on later—no need to cycle through modes from scratch every time.
Key features


This set is positioned as a simple, low-fuss Christmas lighting solution, with features geared towards both convenience and safe outdoor use.

- 8 lighting modes with memory: Combination, Steady On, Slow Fade, In Waves, Slow Glow, Chasing/Flash, Sequential and Twinkle/Flash.
- Warm white LEDs: The lights are described as warm white for a classic festive look.
- 200 bulbs over 20m lit length: A practical length for decorating a tree or creating a longer line effect.
- 10cm bulb spacing: A spacing meant to help achieve a full glow.
- Plug-in operation with UK mains plug: No batteries required.
- IP44 rated adapter for indoor/outdoor use: Designed for use both indoors and outdoors.
It’s also worth pointing out that the set is described as low-voltage with a 31V low voltage adapter, and the lights are stated to be safe to touch while on—useful if kids or pets may be around during setup.
Tech specs
- Type: Christmas fairy string lights
- Name: NETTA Christmas Tree Lights 200 LED
- Format: Plug-in fairy lights with 8 modes
- Capacity: 200 LED bulbs
- Size: 20m lit length
- Dimensions: Bulbs are 10cm apart, 5m lead wire is mentioned
- Colour: Warm white bulbs with clear cable
- Material: Clear cable (no further materials specified)
- Display: Not applicable (string lights)
- Refresh rate: Not applicable
- Processor: Not applicable
- Memory: Memory functions mentioned
- Safety rating: IP44 rated adapter for indoor/outdoor use

Usage tips
Getting the best look is mostly about placement. Because the bulbs are 10cm apart, the lights should look more “even” when you keep them snug to whatever you’re decorating—rather than loosely letting them fall into uneven loops.


A practical example: imagine a small artificial Christmas tree. If you wrap the fairy lights around the branches in a gentle spiral and then lightly tuck the remaining sections, the 200 warm white LEDs should help avoid the patchy ‘stripes’ effect that can happen with wider spacing sets.
For outdoor use, the key is planning the route for the 5m lead wire. If your plug socket is further away than you expect, you might find you need a suitable outdoor power extension—without that, you could end up with an awkward cable run.

Also, these are low-voltage, and the lights are described as safe to touch while on. Still, it’s sensible to handle them with care during installation, especially when damp weather is involved.
Is it worth it?
Worth buying if you want warm white Christmas tree lights that are easy to use (plug in, choose a mode) and you like the idea of warmer, classic fairy-light coverage across a 20m lit length. The 8 effects and memory function are genuinely useful if you switch modes depending on the evening or event, and the IP44 rated adapter plus low-voltage setup makes the indoor/outdoor claim more credible.
It may not be the best choice if you don’t have a power source within reach. Because it’s mains-powered (with a 5m lead wire mentioned), battery-free freedom is not what you’ll get here. If you’re trying to decorate areas without nearby sockets, you may end up frustrated before you even get to the fun part.

Mini FAQ


Will these lights work indoors and outdoors?
They’re stated to be suitable for both, with an IP44 rated adapter and a low-voltage setup.
Do I need batteries?

No batteries are required—this is a plug-in set.
How many lighting modes are there?
There are 8 modes, controlled via a button on the plug adapter.
Are the bulbs spaced closely?
Yes, the bulbs are 10cm apart, which is intended to help create a fuller festive glow.
What’s the lit length?
The lit length is 20m (a separate 5m lead wire is mentioned for the cable to the plug).
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