P
paphjoint
Guest
Hi everybody
Ok this is the setup
Under the bench in my greenhouse
A 220V 400W MH - on a lightrail for my seedlings 10 hrs per day, is turned on and off by a timer.
What I want is :
The lamp goes on or off when the sunlight hits a certain level
Can this be done ?
Have not been able to find any photo cell so far
Any help will be much appreciated
THANKS !!!
Ok this is the setup
Under the bench in my greenhouse
A 220V 400W MH - on a lightrail for my seedlings 10 hrs per day, is turned on and off by a timer.
What I want is :
The lamp goes on or off when the sunlight hits a certain level
Can this be done ?
Have not been able to find any photo cell so far
Any help will be much appreciated
THANKS !!!