Hey tsn great thread by the way. I have come to you in search of advise as I hear u are the led expert on the site. I have a two by two ft grow area and I am currently using a ninty watt ufo led. I want to add more light. Would u recomend adding a second 90watt ufo or scrathing the 90 watt I have now and getting a 180 watt panel. Also do the 180 panels put out more heat then the ninty watts because I cant have alot of heat as I dont want to risk my getto tent giving off gasses. If you would use the two can u advise on how to position. Thank you for any wisdom you can provide. Also sorry for all the questions but do the blackstars come with a hanging system.