Probe start MH ballasts that have been damaged by penning start HPS lamps? « on: December 04, 2024, 02:33:09 AM » Author: WorldwideHIDCollectorUSA
After knowing that a vast majority of probe start metal halide. ballasts in North America are CWA ballasts and knowing that penning start high pressure sodium retrofit lamps intended for use on mercury vapor ballasts are incompatible with CWA ballasts, I am wondering if anybody has ever seen any specific probe start metal halide fixtures that had their ballasts being destroyed after a penning start high pressure sodium retrofit lamp intended for mercury vapor ballasts such as a Sylvania Unalux lamp was installed in the fixture.
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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: Probe start MH ballasts that have been damaged by penning start HPS lamps? « Reply #2 on: December 04, 2024, 03:28:46 AM » Author: WorldwideHIDCollectorUSA
I recall seeing that some members have seen examples of penning start high pressure sodium retrofit lamps being responsible for causing ballast failures in mercury vapor CWA ballasts: “My neighbor tried one in a nice CWA 175 merc I installed for him. Lasted maybe three months and burned up the ballast. Started fine every night, and looked normal though.” Here is a post that covers this information extensively: https://www.lighting-gallery.net/gallery/displayimage.php?album=search&cat=0&pos=5&pid=132077
		Logged

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.