Product Overview

The Pentair 79102200Z Amerlite Replacement Bulb is a genuine replacement floodlamp designed for compatible Pentair Amerlite underwater pool lights. This 400-watt, 120-volt medium-base bulb is used when servicing Amerlite fixtures that require a standard 400W incandescent replacement lamp.

When replacing a pool light bulb, it is strongly recommended to replace the lens gasket at the same time to help maintain a proper watertight seal and protect the fixture from water intrusion.

Ideal For

Pentair Amerlite pool light service
Replacing burned-out 400W Amerlite bulbs
120V incandescent pool light fixtures
Pool light maintenance and repair
Customers keeping an existing Amerlite fixture in service

Key Features

400W Incandescent Replacement Bulb
Provides bright white illumination for compatible Amerlite underwater pool lights.

120V Operation
Designed for compatible 120V pool light fixtures.

Medium-Base Floodlamp Design
Uses a medium-base style for compatible Amerlite light fixtures.

Genuine Pentair Replacement Part
Supplied as a Pentair replacement bulb for proper fit and performance.

Used with Amerlite Lights
Designed for compatible Pentair Amerlite pool light fixtures.

Benefits

Restores brightness to compatible Amerlite pool lights
Helps extend the service life of existing Amerlite fixtures
Direct replacement option for compatible 400W, 120V applications
Ideal for routine pool light repair and maintenance
Genuine replacement part for proper compatibility

Specifications

Customer-Facing Q&A

Q: What is Pentair 79102200Z used for?
A: It is a 400W, 120V replacement bulb for compatible Pentair Amerlite underwater pool lights.

Q: Is this a complete pool light fixture?
A: No. This listing is for the replacement bulb only. It does not include the light housing, lens, gasket, or face ring.

Q: What voltage is this bulb?
A: This bulb is 120V.

Q: What wattage is this bulb?
A: This is a 400-watt replacement bulb.

Q: What base type does this bulb use?
A: It uses a medium-base design for compatible Amerlite fixtures.

Q: Should I replace the gasket when replacing the bulb?
A: Yes. The lens gasket should be replaced any time the light fixture is opened to help prevent leaks.

Q: Will this work in all pool lights?
A: No. This bulb is for compatible Amerlite fixtures that require a 400W, 120V medium-base bulb. Always confirm your fixture model before ordering.

Q: Is professional installation required?
A: Yes. Underwater pool lights should be serviced by a qualified pool professional or licensed electrician following all local electrical codes.

Confirm Before Ordering

Confirm your existing light model, voltage, wattage, bulb base, and fixture condition before ordering. This is a 400W, 120V replacement bulb only for compatible Amerlite pool lights.

Recommended Add-On

Replace the lens gasket when changing the bulb. For many compatible Amerlite fixtures, the matching 8-3/8" lens gasket is Pentair 79101600Z.