This listing is for ONE Piece of the 18 Watt, 18W Coral Life Turbo Twist 6x, ESU , & Tetra UV2 , OEM Quality, Premium Compatible UV Bulb Lamp,This Premium Quality Replacement lamp is Manufactured by Starlighting and is Guaranteed to Meet or Exceed the Original Manufacturers Specifications. The use of the Original Manufacturers Name is for Identification purposes only. The name Coral Life is trademarked and wholly owned by Coral LifeWe do not sell or distribute Coral Life Products