The Cannabis Grow Bible by Greg Green Poor lighting system Domestic lights These are the lights you find in use around your house. These lights come in all sizes and wattage – 30 watts to 150 watt. These lights are not suitable for growing because of their low light intensity and bad color spectrum. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ