gb2000 balloon lighT• operaTion and parTs manual — rev. #3 (08/30/12)— page 15
fOOtCandle plOt
1 grid = 40 ft.
Illuminance (Footcandle)Diameter (Feet)
30
9
2030
1052
5
65
2
91
1
117
0.5
156
0.25
232
20
10
Figure 2. Footcandle Plot