Urban Grower 45 HPS & Metal Halide Lights
Urban Grower 45 Mark’s Medi Grow
February 16, 2010
Urban Grower 45 Mailbag & New Stuff
March 9, 2010
http://www.urbangroweronline.com In this clip,we discuss the differences between HPS and Halide lights..We also talk about maintenance and when to change your lights..
