I would like to share something we do.
We use computer power supply's. You can add several computer fans fairly easy.
Note-
The computer power supply will need to be jumped. Normally the power supply will connect to a mother board. The mother board connects to the desktop/laptop power button. You will need to goto the power supply manufactures website and review the wire harness to mother board scheme. Once you locate the power on/off connections simply jump it. This will complete the circuit enabling you to energize the power supply by the switch on the power supply its self.
I also like the Energy Savers Coralife power center power strip. They make 3 different types. All 3 stips have built in timers. The timers are not limited to on and off like most timers. When the timers is set to day plugs (2) will be active and anther plugs (2) will be non active. When timer moves to night shift the non active night plugs will become energized and the day plugs are then disabled. The 3 different types of timer consist of:
Digital timer- can control each day of the week. 2 day/2 night plugs
Single dial mechanical timer- 2 day/2 night plugs
Dual dial mechanical timer- 2 timers each controls 2 day/2 night plugs giving you dusk settings or controlling a second grow box.
Here is a link to Energy Savers Unlimited
http://www.esuweb.com/subcategory.as...&RelationID=87
aloha
Frederick
Legal Medical Care taker