Just to confirm: The magnetic ballast or the electronic ballast will send the same amount of power, 750 watts, to the lamp. The ballast itself either at 765 for the electronic or 810 for the magnetic, is what is consuming the wattage.....
-Yes, you are correct. The ballast consumes those wattages not the lampLamp only gets the 750 to operateCLICK HERE and get the specifications
of that lamp. First 4 pages are all on that lamp.
It is recommended to replace every 10,000 hours which is a short life compared to others I see with life of 20,000 hours and more.
Of course, proving in the field is always better than the paper that specifies information.
Here is one of themManufacturer: General Electric
Model: LU 750 HPS SYL
Lu mens: 105,000
Color Temp: 2100K
Base: Mogul E39
ANSI Code: S106
Burn Position: Universal
Bulb Life: 24,000 hrs
Finally: will the magnetic ballast or the electronic ballast operation have a different effect on the life expected from the lamp? Longer or shorter or the same....???
Technology has improved on the electronic ballast and I believe today they offer better reliability and keep lamps at efficiency better than magnetic ballast.
Use to be they had issues in the beginning and had a higher lamp failure rate but times have changed in my opinion and experience.
They use less energy, have less noise, produce less heat and last longer than the magnetic ballast.
They do cost more in most cases, so changing should be on a dead replacement pattern to minimize changeover costs.
I believe the magnetic ballast will begin to fade out of the market sometime in the future with all of the energy savings the government is working towards.
Unknown when of course.
Let me know if more info is needed, thanks