Power of a LED (What is the power of an LED and how can I compare it with other sources of light?)

The power of a LED depends on the selected operating current. As the operating current can be freely selected and the voltage Uf depends on the current, the electrical power is a variable parameter. Vossloh-Schwabe indicates the current-independent Pel in the data sheet for individual modules. This is why details of the wattage we are used to for incandescent lamps is not sufficient to draw a conclusion on the brightness or quality of the LED. A 4W LED is not necessarily "better" than a 1.2W LED. It may be the same LED under some circumstances, but just operated with different currents.

A better way of comparing the brightness is offered by the lumen information for the light source or the efficiency in Lm/W (lumen per Watt) to compare the energy efficiency.

The brightness of the LED does not increase proportional with higher operating currents but saturation of the semi-conductor takes place. This is why the efficiency of the LED (lm/W) does not reduce with an increasing operating current despite the increasing brightness.

Our partner from the USA has been developing and producing high-quality semiconductor for about 30 years. CREE has been our partner for an extensive range of LEDs since 2004. The product range includes a wide range of high brightness, high power LEDs offered in SMD as well as THT and COB technology.

Your contact: Olaf Naumann

Phone +49 (0)2842 980-211
Olaf.Naumann@vossloh-schwabe.com

Nichia from Japan, the inventor of the white LEDs, has been one of the partners of VS since 1995. The product range includes a comprehensive range of high brightness and high power LEDs, as well as a UV LED product range covering all power classes.

Your contact: Ulf Hilsenberg

Phone +49 2842 980-213
Ulf.Hilsenberg@vossloh-schwabe.com

To complement our LED range, we offer secondary optics and reflectors from our partners Carclo (www.carclo.com) and LEDiL (www.ledil.com). The product range includes a large selection of optics, optic holders and reflectors made of PMMA and silicone. We specifically stock up on a wide range of products to match the LEDs from CREE and Nichia we offer.




We develop and produce a variety of LED optics for shop, office, hall and street lighting for you. Optics are available in various designs (round, square, linear) made of high-quality materials (PMMA, silicone) and with any beam angles (narrow/wide, asymmetrical or combined).

Our partner from the USA has been developing and producing high-quality semiconductor for about 30 years. CREE has been our partner for an extensive range of LEDs since 2004. The product range includes a wide range of high brightness, high power LEDs offered in SMD as well as THT and COB technology.

Your contact: Olaf Naumann

Phone +49 (0)2842 980-211
Olaf.Naumann@vossloh-schwabe.com


Nichia from Japan, the inventor of the white LEDs, has been one of the partners of VS since 1995. The product range includes a comprehensive range of high brightness and high power LEDs, as well as a UV LED product range covering all power classes.

Your contact: Ulf Hilsenberg

Phone +49 2842 980-213
Ulf.Hilsenberg@vossloh-schwabe.com