FHD85ECW/L I purchased this for a fluorescent light replacement, but I've decided to replace the entire lighting fixture, so I no longer need it. I wrote the purchase date on the fluorescent light itself, but that's all. I opened the package, but the item is unused. The product package states, "Be sure to use this with a dedicated FHD fixture." Please confirm compatibility, including the size, before purchasing. As this is an opened item, please refrain from purchasing if you are concerned about minor details. Thank you. Panasonic Twin Parook Premier Fluorescent Lamp 85-watt Cool Color (Daylight) Model Number: FHD85ECW/L High-Frequency Lighting Dedicated Double Ring Fluorescent Lamp