Q: Do they require maintenance?

Much less than traditional fluorescent luminaires. As they do not use replaceable tubes, starters or conventional ballasts, incidents are considerably reduced. In addition, LED technology maintains more stable performance over time. In professional installations, replacing fluorescent lighting with LED panels can reduce maintenance costs by 50% to 70%, especially in buildings with many luminaires.

Question 1

How many lumens does an LED panel need?

Accepted Answer

It depends on the size of the space and the required lighting level. As a reference, an office usually needs between 300 and 500 lux, while a corridor works properly with 100–200 lux. A standard 600x600 mm LED panel normally provides between 3,600 and 5,500 real lumens, enough to cover between 8 and 15 m² depending on height, distribution and the desired light level. For example, a 20 m² office with a target of 400 lux would require around 8,000 useful lumens, usually covered by two high-efficiency LED panels.

Question 2

What colour temperature is best?

Accepted Answer

4000K is the most common option in offices and educational centres because it provides balanced neutral light that supports concentration. In homes, hotels or restaurants, 3000K is usually used to create warmer atmospheres. Above 5000K, the light becomes whiter and more technical, common in clinics or laboratories. It is also worth considering the CRI: CRI>80 is recommended for interiors, while CRI>90 may be preferable in spaces where colour is important.

Question 3

Do LED panels consume a lot?

Accepted Answer

No. Their main advantage is energy efficiency. A 36–40W LED panel can replace a traditional 72W fluorescent luminaire while maintaining similar lighting levels, with typical savings of 40% to 60%. In addition, many current models achieve efficiencies of 120–140 lm/W, generating more useful light with less consumption and less heat.

Question 4

How long does an LED panel last?

Accepted Answer

Professional LED panels usually offer between 50,000 and 70,000 hours of L80 service life, meaning they retain at least 80% of their initial luminous flux. In an office with average use of 10 hours per day, this can translate into more than 13 years of operation. Durability depends mainly on the quality of the driver, thermal dissipation and the electrical stability of the installation.

Question 5

Are they suitable for offices?

Accepted Answer

Yes. They are one of the most widely used solutions in modern offices thanks to their lighting uniformity, efficiency and low glare. In spaces with screens, UGR<19 is recommended to reduce reflections and visual fatigue. For this reason, many panels include specific diffusers and optics to control glare. In addition, their uniform distribution avoids excessive contrasts and improves visual comfort during long working days. Is the UGR index important? Yes, especially in offices, classrooms and meeting rooms. The UGR index (Unified Glare Rating) measures perceived glare. The lower the value, the lower the visual discomfort. The UNE-EN 12464-1 standard recommends UGR<19 in offices and areas with screens. In corridors or transit areas, higher values can be used without significantly affecting comfort. Can they be installed without a suspended ceiling? Yes. Although recessed installation is the most common option, surface-mounted and suspended options are available. Surface frames allow installation on solid or plasterboard ceilings without a suspended ceiling, while suspension kits are widely used in modern offices and open spaces. This makes them suitable for homes, renovation projects and retail premises.

Question 6

Do they require maintenance?

Accepted Answer

Much less than traditional fluorescent luminaires. As they do not use replaceable tubes, starters or conventional ballasts, incidents are considerably reduced. In addition, LED technology maintains more stable performance over time. In professional installations, replacing fluorescent lighting with LED panels can reduce maintenance costs by 50% to 70%, especially in buildings with many luminaires.

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