MACRO   Power & Engineering
 
Constant Wattage Ballast Metal Halide
Constant wattage ballast although heavier, larger and more costly provides numerous advantages over reactor-ignitor gear. The lamp output power is maintained at a highly constant state, even over supply fluctuations, due to the regulation action of the auto-transformer. Hence the name Constant Wattage (CWA).
.
Click here for HPS Units
.
MH175CW
MH400CW
MH1000CW
MH1500CW
CONSTANT WATTAGE BENEFITS:
Superior performance and lamp control over 10% variations in supply voltage
Low line starting current
Greater control of lamp power and colour temperature
Significant reduction in lamp flicker
High power factor characteristic 0.95 or higher
High input impedance to supply switching frequencies
Will sustain lamp operation with dips in supply voltage
In the order of 40-50%
Features include
Long Service Life
Vacuum impregnation
Non-audible noise level
300mm Long Flying Leads Provided
Winding insulation Class H materials
Fixed air Gap ensuring permanent calibration 
Tw150 winding temperature rating
C-tick N3499
OPTIONAL EXTRAS INCLUDE:
Timer Long Distance Ignitors 
Change Over Relays (SCR-8)
Final 100% Testing:
Winding short & open Circuit
Insulation
.