Table to illustrate light intensities

Table to illustrate different light intensities (Lux is unit to measure light intensities) Research has proven that 30 to 60 minutes exposure to 5,000 to 10,000 lux give enormous benefits to more than 80 % of light therapy users.
Under sunny sky on the beach	100,000 lux	Outdoor in summer, when the sky is clear, light levels can reach 50,000 to 100,000 lux.
Outdoor, on a sunny spring morning	10,000 lux	A few minutes after sunrise
SADelite desk lamp (at 20 inches / 50 cm)	10,000 lux	Suggested treatment schedule with SADelite : 20 to 30 minutes / each day, preferably in the morning.
TRAVelite lamp (at 10-12 inches / 25-30 cm)	10,000 lux	Suggested treatment schedule with TRAVelite : 30 minutes / each day, preferably in the morning.
TRAVelite Lamp (at 15 inches / 40 cm)	6,000 lux	Suggested treatment schedule with TRAVelite at that distance : 40 to 60 minutes / each day, preferably in the morning.
In a very well lit office	500 à 1000 lux	Even in very well lit office, light levels reach rarely more than 1000 lux.
At home	300 à 700 lux	(conventional lighting)
Desk lamp	100 lux	(in a bedroom)