PRG Bad Boy Field Service Manual - Manual (Page 110)

102 BAD BOY ® SPOT LUMINAIRE FIELD SERVICE MANUAL
Medium Zoom
Iris Full Open
34º Full Angle
48,000 beam Lumens
Throw Dist (Ft) 20 30 50 75 100
Beam Dia. (Ft) 12.2 18.3 30.6 45.9 61.1
Illuminance (fc) 850 378 136 60 34
Throw Dist (m) 5 10 20 25 30
Beam Dia. (m) 3.1 6.1 12.2 15.3 18.3
Illuminance (lux) 13600 3400 850 544 378
Multiply throw distance by Tn to find beam diameter.
Divide cd (candela) by distance squared to find center beam illuminance.
Dist. in Ft. = foot candles
Dist. in meters = lux
350000
300000
250000
200000
150000
100000
50000
0
20.0 16.0 12.0 8.0 4.0 0.0 -4.0 -8.0 -12.0 -16.0 -20.0
Degrees
Tn = 0.61
cd = 340,000
Candela
Lamp Power = 1400 Watts