Recommendations for using Grow light in practice

This folder gives the most economic and effective irradiation schemes for a wide variety of plant species and cultivation methods, as well as the most suitable lamp types for the purpose

The data refer to supplementary greenhouse radiation under West European conditions and should therefore be treated with some caution if used in areas with more or less natural daylight, and also if used on strains and varieties of plant species other than those listed in this survey. If more information is required, consult your nearest Philips organization.Also, the irradiance requirements must not be seen in isolation; they should be coupled to other environmental factors, such as temperature, humidity and amount of fertilizer used.

The recommended irradiation level is expressed in µmol m-2s-1 (PPFD). However, in practice the irradiation unit lux is often still used. Therefore the conversion from lux to PPFD is shown below. This conversion is not a constant but is dependent on light source, operating temperature and amount of operating hours of the lamp