ᐅ How can I build IKEA BESTA units with integrated LED lighting as custom-designed furniture?

Hello everyone,

I am planning to assemble an IKEA BESTÅ as a designer piece of furniture, but I want to integrate LED lighting to enhance both its appearance and functionality. Are there any experiences or recommendations in this forum on how to incorporate LEDs cleanly and discreetly without compromising the stability and clean lines of the BESTÅ? I’m particularly interested in which LED solution (e.g., LED strips, recessed spotlights) works best, how to properly install the power supply, and what to pay special attention to in the wiring to ensure the final piece is a high-quality designer furniture that is also technically well-executed. I am especially aiming for an elegant look that doesn’t look DIY but instead fits seamlessly into the furniture.

Thanks in advance for any tips, both regarding materials and experiences with installation and potential challenges.

tarpeo schrieb:
I am particularly interested in which LED solution (e.g., LED strips, recessed spotlights) is best suited, how to properly install the power supply, and what to pay special attention to in the wiring to ultimately create a high-quality piece of furniture that is also technically sophisticated.

For a clean integration into the BESTÅ system, I recommend 12V DC LED strips, as they are easy to cut and flexible to install. The choice should be warm white LEDs (around 2700-3000 K) for a pleasant atmosphere.

Regarding the power supply: a stable, external power adapter is advisable, placed outside the furniture to avoid heat buildup inside. Use high-quality DC cables with sufficient cross-section (at least 0.75 mm²) for low-loss power delivery.

When wiring, well-organized cable management is important, for example, using cable ducts or clips attached to the inner frame so that cables are neither visible nor obstructive. Also, all connections should be properly soldered and insulated to prevent contact issues.

Finally, for a refined look, I recommend LED profiles (aluminum channels with a frosted cover) that can be mounted on the inside of the shelves to ensure even light distribution without glare.

tarpeo schrieb:
Are there any experiences or recommendations here in the forum on how to cleanly and discreetly integrate LEDs without compromising the stability and the clean lines of the BESTÅ?

Interesting point. However, I would question whether it really makes sense to alter the original drill holes or fixing points. This could affect the structural integrity.

Would a completely new carcass or a special BESTÅ variant with cutouts possibly be better suited? There are more modular options available.

Also, it’s worth checking whether the self-installed electronics meet safety standards for residential use. Cheap LED solutions from hardware stores are often suboptimal. In the long run, a professional solution might actually be more cost-effective.

Besides aesthetics, the aspect of heat generation should also be considered. Although it is low with LEDs, it can be relevant for recessed spotlights.

Why not also consider building a separate lighting module that can be screwed onto or magnetically attached in front of the furniture? This way, the design piece can be expanded with minimal intervention and remain reversible.

ODINFLO schrieb:
However, I would question whether it really makes sense to alter the original drill holes or mounting points.

I agree. Especially if you want to reuse the furniture differently in the future, reversibility is important to me. It often annoys me when furniture is modified with LEDs and ends up looking like a total failure because cables hang loose or the installation looks sloppy.

I have worked with LED strips myself and can only recommend investing real time in cable management: neatly taped cables, no visible connections, or unevenly placed strip segments. You quickly notice the difference between a professional and a DIY installation.

And again about the power supply: I would not hide the transformer (or power adapter) inside the furniture but place it somewhere easily accessible. Heat buildup causes more problems than it’s worth in the long run.

andre3 schrieb:
A stable, external power supply is recommended, placed outside the furniture piece to avoid heat buildup inside.

Totally agree! Who wants a sauna heater inside a cabinet? 😂

Also, don’t forget about the lighting control. A remote control or a simple dimmer really makes a difference and adds more flexibility.

I installed LED strips with a dimmer in my BESTÅ – the upgrade almost feels like getting a new piece of furniture. You can set the lighting dim during the day or cozy in the evening.

One more tip: if the strips are mounted on the top surfaces of shelves, definitely use light-diffusing plastic covers. This makes the light much more even and prevents unpleasant hotspots.

And yes, having some stored cable ties or self-adhesive cable clips works wonders for keeping things tidy!

ODINFLO schrieb:
Why not also consider building a separate light module that can be screwed onto or magnetically attached to the furniture? This way, the furniture design can be extended with minimal intervention and remain reversible.

Thanks for the suggestion, the idea of a reversible light module does sound appealing. However, I would still like it to be integrated into the furniture as elegantly and discreetly as possible. Minimal intervention also means I don’t want to significantly damage the cabinet material, but still want the light to be basically “invisible.”

My research so far has shown that there are very good LED aluminum profiles that can be mounted flush on the inside. The edge-glass or doors of the BESTÅ could also help diffuse the LEDs slightly. That’s why I’m currently leaning toward this option.

Regarding power supply: Do I necessarily have to use a 12V system, or are there convincing alternatives with 230V that can be safely and neatly concealed?

I have no experience with soldering wiring, so an assessment of how complex this is would be helpful, as well as whether there are reliable alternatives to soldering for a long-lasting connection.