Light metering

The returns from supplemental lighting installations decrease over time. How fast this happens depends on various factors. The light output from lamps decreases as does reflector efficiency. Decreased returns such as this often remain hidden because they generally cannot be observed with the naked eye. Raymax can measure the decreased returns objectively based on various light measurements. Raymax has its own metering laboratory available for this purpose that has an Ulbricht Sphere, for measuring lamps, and a Goniomobiel, which is a mobile unit for measuring reflectors. Raymax offers the option of having these measurements taken annually so that you are up to date regarding the efficiency of your supplemental lighting installation. They offer a Supplemental Lighting Contract (SLC) (Groeilichtcontract (GLC)), for this purpose, which takes the responsibility for optimum performance of the supplemental lighting installation of your shoulders.

Practical light metering

Depending on the manufacturer, Raymax will carry out practical light metering as soon as a new supplemental lighting system has been installed. When it is a Hortilux installation this is offered free of charge for installations with more than 375 fittings and if a light plan has been made for the installation in question.
Light metering can be carried out in practice as soon as the supplemental lighting installation has been in operation for at least 200 hours. Light metering under practical conditions consists of two measurements between four lights at representative positions in the greenhouse. During metering the other parameters that influence the light level are also checked. You will receive a comprehensive report from us concerning the light metering.

The light metering will, of course, be carried out in accordance with the Metering Protocol as agreed for horticultural lighting installations.