Re: F25T12/CW/48 Preheat reduced wattage would this work on 120v? « Reply #1 on: September 21, 2024, 12:43:24 PM » Author: WorldwideHIDCollectorUSA
I am pretty sure it would also require an FS4 starter as well due to the similar arc voltage drop. From what I am aware of, the 48” F25T12 lamps designed for rapid start ballasts supposedly work just as good on F40 preheat ballasts with FS4 starters although lamp life would be short due to the weak electrodes.
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: F25T12/CW/48 Preheat reduced wattage would this work on 120v? « Reply #3 on: September 23, 2024, 10:24:15 PM » Author: WorldwideHIDCollectorUSA
I do not think that is necessarily the case since I believe that the tube may still flicker like EOL even with a FS2 starter since I think the tube’s arc voltage drop is responsible for causing the starter to get retriggered.
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.