What are the uses of LED today

Put in the right light

Prejudice No. 2: "LEDs contain blue light that is harmful to health"

The Federal Office of Public Health writes the following in its fact sheet on LED light sources: According to the current state of knowledge, the blue light component of LEDs does not endanger the health of the eyes. This also applies to children and people with very clear or missing eye lenses. " However, the fact sheet advises against using LEDs at a small distance from the eye (less than 20 cm).

Prejudice no. 3: "LEDs generate artificial light and make you tired"

On the contrary: LED lighting can produce light that is very similar to daylight. In addition, LEDs make the colors appear natural. In contrast to conventional lighting, LED lighting has the advantage that there are fewer contrast images that are eye-tiring.

Prejudice no. 4: "There is much more gray energy * in LEDs than in a light bulb"

Energy consumption is highest for all types of lamps during use. LED light sources need more manufacturing energy than traditional light bulbs or halogen lamps: with an LED lamp it is 5 kilowatt hours, with an incandescent lamp it is only 0.9 kilowatt hours. However, their energy balance is still better because of the higher energy efficiency and longer service life - an LED lasts 20-30 times longer than an incandescent lamp and requires approx. 4 times less energy.

* Embodied energy: Energy that is used to manufacture, transport, store, sell and dispose of a product

Prejudice No. 5: "LEDs are expensive"

Looking only at the price of the product, e.g. B. an LED lamp compared to a halogen lamp, then the LED lamp is more expensive. But since LEDs consume less power and have a longer lifespan, the total costs of an LED are significantly lower. A calculation example from topten.ch shows: While the total costs for 10 years for a halogen lamp are 104 francs, it is just 19.50 francs for an LED.