Retrofitting flushmount schoolhouse fixture to fluorescent « on: November 20, 2021, 03:16:52 AM » Author: WorldwideHIDCollectorUSA
Here is a 1940s video of a man retrofitting his kitchen schoolhouse flushmount fixture to fluorescent by installing a 2 lamp F20T12 preheat fluorescent adapter in its place: https://www.pond5.com/stock-footage/item/75280643-man-installs-fluorescent-lighting-fixture-his-kitchen-so-the
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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.