|
A Comparison between Magnetic and Digital Electronic Remote Ballasts
|
|
Magnetic Ballast |
Electronic Ballast |
|
Energy Efficiency |
Over 80% |
Over 90% |
|
Power Factor |
80 - 90% |
99% |
|
Harmonics |
Over 30% |
Below 99% |
|
Input Current Crest Factor |
2 - 3 |
10 |
|
Lamp Frequency |
50 - 60Hz |
60 - 80KHz sine wave high frequency |
|
Fluctuation Rate of Lighting Flux |
Over 10% |
Within 0.1% |
|
Ambient Temperature |
Manufactured separately up to high, medium, and low temperatures |
-86°F - + 140°F |
|
Weight |
8.8 - 22 lbs |
1.1 - 6.6 lbs |
|
Size |
No compact type |
From ¼ to ½ of Magnetic Ballast |
|
SurfaceTemperature |
145.5°F |
122°F |
|
Function |
*Unchangeable *Unable to supply constant Voltage |
*Constant outputting *Self-Diagnosis |
|