How do you properly use a 50 amp timer box such as http://cgi.ebay.com/50-AMP-TIMER-BOX-FOR-LIGHTING_W0QQitemZ200359460664QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2ea65abf38
Could I plug it into a 240v extension cord, plug the extension cord into my oven outlet and Mount my box on the inside of the grow room. I'm trying to be safe I dont want no fire or to kill myself. If this method wont work then how would I go about setting this up. And will it be even possible if I dont have access to the main panel?
Thank you to everyone that has any advice.
Could I plug it into a 240v extension cord, plug the extension cord into my oven outlet and Mount my box on the inside of the grow room. I'm trying to be safe I dont want no fire or to kill myself. If this method wont work then how would I go about setting this up. And will it be even possible if I dont have access to the main panel?
Thank you to everyone that has any advice.