Direct Answer • Key Takeaway
Conical (C) Bulbs Are Shaped Like a Cone. Conical Angular (Ca) Bulbs Are Shaped Like a Cone but Have a Bent Tip. Blunt-Tip (B) Bulbs Are Very Similar to C-Type Bulbs but Have More of a Torpedo or Bullet Shape. Numbers in Each Code Refer to the Bulb’s Diameter in One-Eighths of an Inch.