Services / prices

Measurement of lamp lumens

We measure any lamps up to a performance of 1 000 W

• We ensure operation in the appropriate ballast / control gear
• We prepare for the measurement in the correct burning-in cycle.
• We ensure highest accuracy. Our measuring uncertainty can be up to a maximum of 2,5%.

You will receive the results as

• a detailed measurement report with the actual lamp lumens.
• definition of the electrical parameters.
• Optional we determine the classification of the energy-efficiency according to EC Directive 98/11/EC (5,7 MB). The energy labelling is statutory for all household lamps.

Measurement of luminous intensity distribution

We measure the characteristic light emission of all types of luminaires: surface-mounted, recessed, hanging, wall standing and table luminaires. The only limitation is that the light exit area may not exceed 180 cm.

You will receive the results as

• a measurement report with a luminous intensity distribution curve (LDC)”. The maximum measurement inaccuracy is 4,0 %.
• light output ratio of the luminaire.
• the electrical parameters: lamp current, lamp voltage and lamp performance.
• LDC data in digital form, usually in the file format .LDT, on request also available in any other photometric data format, e.g. .IES, .TM14, .LTLI.

If you wish to have the lamp measured with different optical elements, then you can profit from the favourable prices for subsequent measurements.

Measurement of reflectance or transmittance

Definition of diffuse reflectance or transmittance of any type of material according to DIN 5036-3. As a light source reference we use Standard Light A (2850 K) or Daylight D65. You will receive the results in our measurement report.