Michael - those are square pin connectors and different than the straight pin connection (all 4 in a line).
Sam - Let me check which type are on my planted tank. I haven't changed bulbs in a long time and my plants would probably appreciate it. I'll get back to you tonight/tomorrow.
EDIT - Nevermind... thought they were, but looked them up on the Interwebs (both Coralife fixtures) and I have the square pins on my 36" fixture and straight pins on the 30" fixture. Thought that both were straight...