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.
Here's a handy guide to shine some light on how to choose the correct light bulb in this new age. Traditionally household incandescent light bulbs were rated between 40 to 100 watts. In comparison, newer LED or CFL light bulb come equipped for as little as 5 to 15 watts. The reason for this discrepancy is wattage tells you how much energy a bulb uses. And since the new LED and CFL light bulbs use much less energy, their wattage is much lower.