Distance in (Feet)

10

20

30

40

50

60

70

Ellipsoidals

Maximum Diameter in Feet

3.5 x 6

500w

7

14

21

27

34

3.5 x 8

500w

5

10

15

20

25

3.5 x 10

500w

4

8

12

16

20

4.5 x 6.5

750w

31

41

52

62

72

6 x 9

750w

20

27

33

40

47

6 x 12

750w

14

19

23

28

32

6 x 16

750w

10

14

17

20

24

6 x 22

750w

6

8

9

11

13