[Aniko]

DonkeyMom - I post here two links, you might need them: the skewer method helps to control watering, and a post from Jerry for measuring light levels with a photo camera.

Measuring the light level you can estimate the light level in your growing area, if it's enough for catts to bloom - or it's too much, and can burn the leaves. Being burned is a serious concern.

If you decide to keep them outside, you have to expose them gradually to the sun.

http://www.orchidgeeks.com/forum/newbie-questions/1099-skewer-use-for-watering-of-orchids.html

http://www.orchidgeeks.com/forum/newbie-questions/292-measuring-light-levels-with-an-slr-camera.html