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.
Laser powers and visibility. The power of a laser beam is measured in watts and milliwatts (1/1000 watt). The minimum power needed for a laser light show in a dark, medium-sized room (like a hotel ballroom) is about 500 milliwatts to 1 watt. Somewhere between 5 and 20 watts is typical for indoor use.