Light Source |
Conversion factor |
Incandescent (150W) |
4.2 |
Fluorescent (F40CW- 40W) |
2.9 |
HP Sodium (400W) |
2.3 |
Metal Halide (400W) |
2.8 |
Poot, J. 1984. Application
of Growlight in Greenhouses. Poot Lichtenegie B.V. Westlander 42, 2636 CZ Schipluiden,
The Netherlands
Poot, J. 1984. Horticultural Lighting. Philips Lighting Company, 200 Franklin
Square Drive,
P.O. Box 6800, Somerset, N.J. 08875-6800