1 One Foot: an Ollie where the front foot is kicked forward over the nose of the board. 2  Ollie North: Another name for the ollie one foot.  Boned Ollie: an ollie where the board is dipped down and the legs are practically horizontal, like a Melon Grab but without the skateboarder actually grabbing the skateboard.
Watts per square foot. The average LED grow light draws about 32 watts to cover 1 sq ft for flowering cannabis. Compare this to a typical HID fixture which rings in at 40 watts per square foot (assuming a 5â x 5â area, or 25 sq ft coverage area). Using an HID in a 4â x 4â will bring the power coverage up to 62.5 watts per sq ft.
To decide how much power your LED strip driver needs, multiply the length of LED tape you have (in metres) by the wattage per metre. For exampleâ¦ 7m of LED tape x 4.8w p/m = 33.6 watts. This means you will need an LED transformer that can supply 35 watts (at least).