well a good safe wattage 150, 250 and maybe 400 watts. You should change stuff around your house to more energy efficiant products when growing too. like change regular incandesent bulbs to Compact Floroesents. A 19 watt CFL can replace a 75 watt incandesnt. This way your electric bills stay around the same.

To make an estimate on electric costs, just follow these steps.
1) check your latest electric bill and find out how much it cost for a kilowatt hour
2) http://www.overgrow.com/tools/powercost.php
Dimebag Reviewed by Dimebag on . what is the top wattage????????? can anyone tell me what is the most wattage that an indoor grower can use for cultivation without raising any suspicion? i mean total number of KW/h of the household during a month of lights on 24/7 or 18/6.....from your intesive growing experience in the past how many kilowatts per hour do not raise any questions especially if you have a landlord? i hope you understand the question....thanx Rating: 5