The part number 630-6005 refers to a Waterway Plastics Front Access 3.5-inch Spa Light Assembly (the plastic wall fitting only, without the bulb or wiring harness).
Spa Manufacturers Using the 630-6005 Light
This assembly is a widely used OEM part, and the complete light kit or its components have been installed in hot tubs from many different manufacturers:
Cal Spas: This part is specifically referenced in Cal Spas light kits with part number LIT16000030.
Dynasty Spas: Dynasty Spas uses this assembly as part of their light kit, identified by their part number 10680 or DYN10680.
Waterway Plastics: As the manufacturer of the assembly, it is used across their proprietary spa designs and sold as a universal replacement part.
Specifications and Cross-References
Hole Size: Requires a 2-5/8 inch hole size in the spa shell for installation.
Face Diameter: The visible face diameter measures approximately 3-1/4 inches (or 3-1/2 inches with the lens cap attached).
Included Components: The 630-6005 package typically includes the plastic light housing, a locking nut with gasket, and red and blue colored lenses.
