I received this from a member. I'll give it free to a paid member.
https://www.marineandreef.com/Custom_SeaLife_65W_8800K_ColorQuest_CF_Lamp_p/rcl05144.htm
Square pin connector
Approx. 21 inches in length (bulbs vary slightly in length)
Used once to test the light fixture.
Pickup near Stow...