Phillips Green power plus 1000w Son T Plus Hps Bulb - 400v Double-ended
Philips Green Power DE 1000W 400VPlus Hps Bulb - Greenpower The Son-T Plus has been the workhorse of the European horticultural market for many years. We use these bulbs because of their high light output
Plant growth (photosynthesis) is not determined by lux or energy but by the photons from the blue to red (400–700 nm) part of the spectrum. This is called growth light! For horticulture, natural daylight (global radiation) is in most cases measured in terms of energy (J or W) with a solar meter. This meter is generally positioned on top of the greenhouse. The value of global radiation is important for climate and humidity control in the greenhouse.