Correct and did it come with the 5.0 bulb or 10.0 bulb? normally it is the 5.0 but the distance is going to differ based on bulb strength. If it is a 5.0 bulb you have to have a full 11 inches between the bottom of the fixture and the branch this will put him in a 3.0 UVI where he rises off the branch.im using this one in 60cm 24 watts