Indoor or outdoor: start with the right use
Not every string of lights is made for both uses. Before anything else, think about where they will go: a living room, a balcony, or a garden exposed to rain. The most useful information is the IP rating, usually printed on the box or in the product details. Lights designed for indoor use should not be left outside in the rain. Equally, a set labelled as outdoor is not necessarily built for long periods of wet weather, so check the stated rating rather than relying on the word outdoor alone.
Also look at the transformer, the small box that lowers mains voltage. For outdoor use it should sit under cover, in a box or under an eave, away from puddles. Failing to check the operating voltage is a common mistake: a low-voltage set cannot simply be plugged into a wall socket without its transformer.
Usable length, LED count and spacing
The advertised length does not tell the whole story. Two sets of the same length can look very different depending on how many LEDs they have and how far apart they are. A set with 100 LEDs will look denser than one of the same length with fewer LEDs.
For a large area, such as a house front, a tall tree or a staircase, work out how much you need before buying. Add up the lengths and allow a margin. Buying too few LEDs for the space is one of the most common disappointments after the holidays.
Product pages usually give the length, the number of LEDs and sometimes the lit length. Compare all three rather than the price alone.
Colour temperature and light modes
Warm white recalls candlelight or a traditional bulb. Cool white looks crisper and more bluish. Your choice depends on the atmosphere you want and what already sits in your decorations.
Next, check the features. A timer lets you schedule switching on and off, so the lights do not have to run all night. Some sets also offer animation modes such as steady, flashing or fading. These can be fun, but they do not replace constant lighting if that is what you want.
The Idena set below is listed with warm white LEDs, an 8-hour timer function, a transformer, and use both indoors and outdoors.

For a different look, a light curtain can dress a window or a wall. Check the product page to confirm the intended use.

Cable, plug, extension lead and timer socket
The power cable is often the weak point. Check its length, because an extension lead adds connections that need protecting from water. Do not connect more sets than the instructions allow, and avoid chaining several extension leads together.
If you use a timer socket, make sure it can handle the total power of your lights and that it is rated for outdoor use if the set is installed outside. Plug types differ between countries. A product bought from a shop in another country may need an adaptor, so check this before ordering.
Comparing prices across countries with Safqio
On Safqio, each product page shows up-to-date prices in several countries: Amazon.fr, Amazon.de, Amazon.it, Amazon.es and Amazon.co.uk. Prices change every day, and the gap between countries can shift from one week to the next. Check the page on the day you buy rather than relying on a price noted earlier.
When comparing, also look at the seller (Amazon or a third-party seller), delivery costs, delivery times and the warranty. A lower price with high shipping charges or a shorter warranty is not always the better choice.
Mistakes to avoid
- An outdoor-labelled set that is not meant for long exposure to rain.
- A transformer left uncovered in a damp area.
- Not checking the voltage before plugging in.
- Too few LEDs for the area you want to decorate.
- A timer socket or extension lead that cannot handle the total power.
Take a few minutes to check these points, and you will avoid most of the usual surprises in December.



