ᐅ IKEA Besta DIY: How do I build a unit with integrated lighting?

Hello everyone,

I am currently planning a DIY project using the IKEA Besta system and want to build a combination that includes integrated lighting. The goal is to create a piece of furniture that is both functional and visually appealing, with soft LED lighting in the open compartments or behind the fronts.

My question is: How can I build a Besta combination with integrated lighting without compromising stability while ensuring clean wiring? What types of lighting and power supply systems are best suited for this, and how can I avoid common mistakes during assembly and electrical work?

Perhaps someone here has experience with similar projects or can offer tips on materials, tools, and procedures. I am especially interested in practical advice on how to neatly hide cables and which LEDs are best for continuous use.

Thanks in advance!

Very good question that considers many details.

Regarding stability: The integration of lighting should not affect any load-bearing elements. I recommend using LEDs in the form of flexible strips (LED strips) because they save space and are easy to install.

For wiring: Use cable channels or concealed cable ducts within the Besta modules. Also, pay attention to connectors that work without soldering (e.g., quick connectors) to simplify installation.

Types of lighting: Warm white LEDs are more comfortable in living spaces and have a long lifespan. Power supply via a power adapter with stable direct current (12 V or 24 V) is common.

Typical mistakes include cables spaces that are too tight and insufficient heat dissipation for the LEDs – make sure to avoid these.

Tools: Screwdriver, drill with a small drill bit (for cable routing), as well as cable ties and electrical tape.

If there is a lack of concrete example projects, I can also offer a simple sketch or instructions.

I would like to add a small tutorial on the procedure:

1. Planning: First, measure the exact internal dimensions of the compartments where the lighting will be installed. Decide whether the LEDs should be placed behind a glass panel, under shelves, or along the edges.

2. Choosing the LEDs: LED strips with a self-adhesive backing are ideal. Pay attention to the IP protection rating (e.g., IP20 is sufficient for indoor furniture). If you want dimming capability, you should use dimmable power supplies and LED controllers.

3. Preparation: Mark cable routes. You can use small cable ducts or routed grooves, for example with a router attachment, but this is optional and requires caution.

4. Installation: Stick the LED strips in place, run cables through channels, and connect to the power supply, ideally hidden in an inconspicuous compartment.

5. Testing: Check the lighting before final assembly of the furniture.

Common mistakes:
- Installing LEDs in closed compartments without ventilation can cause overheating.
- Bending or pulling cables too sharply.
- Insufficient fastening, causing LEDs to become loose.

Summary: A combination of good planning and neat cable management is essential. This will make your Besta combination both functional and visually high-quality.

I would recommend 12 V LED strips, as they can be easily powered using IKEA power supplies or standard 12 V transformers.

For cable routing, you can drill a small hole in the back panel, which makes installation simpler.

Make sure there is sufficient ventilation to prevent any overheating.

KAULIS schrieb:
Typical mistakes are cable spaces that are too tight and insufficient heat dissipation of the LEDs – be sure to pay attention to this.

This is a very important point. I recommend including a thermal balance in your planning, especially if you are using LED strips inside closed compartments without ventilation. Although LEDs generate less heat compared to other light sources, heat can still build up in tight, unventilated furniture, which significantly reduces their lifespan.

Additionally, you should keep the cable runs as short as possible and secure all connections mechanically. Connectors tend to cause intermittent contacts if they are not installed properly. While soldering takes more time, it offers the best long-term reliability.

If you plan to use dimmable LEDs, check the compatibility between the controller and the power supply beforehand. In IKEA Besta units, space is often limited inside the modules, so it helps to install a separate small enclosure for the power supply and control unit in one of the lower compartments.

For installation, I recommend partially removing the back panels to make cable routing easier. You should also equip any small cable openings with rubber or plastic grommets to prevent the wood from damaging the cables.

Do you already have an idea of how many modules you want to connect together and which LED technology you prefer? Then I can provide more specific advice regarding the electrical planning.