Product Overview
The Pentair Amerlite 78949100 is a dependable underwater incandescent white pool light designed for bright, classic pool illumination. Built with a durable stainless-steel shell, stainless-steel face ring, and prismatic tempered-glass lens, Amerlite lights are a long-standing choice for inground pool lighting replacements and new installations.
This model operates on 120V, uses a 400-watt incandescent lamp, and includes a 100-foot cord for installations requiring a longer cord run from the pool niche to the junction box.
Ideal For
Inground swimming pools
Amerlite pool light replacement
Traditional white incandescent pool lighting
Full-size wet niche applications
Pools requiring a 120V, 400W light with 100-foot cord
Residential and commercial pool lighting applications
Key Features
400W Incandescent White Light
Provides strong, classic white pool illumination for inground swimming pools.
120V Operation
Designed for standard 120V pool light circuits with proper GFCI protection.
100-Foot Cord
Includes a factory-attached 100-foot cord for longer equipment pad or junction box runs.
Stainless-Steel Face Ring
Durable stainless-steel face ring provides a clean, professional finish.
Prismatic Tempered-Glass Lens
Designed to help diffuse light evenly throughout the pool.
Stainless-Steel Shell
Built for long-term underwater use in compatible pool lighting applications.
Low-Water Cutoff Protection
Designed with thermal protection to help protect the fixture if exposed to low-water conditions.
Full-Size Niche Compatibility
UL Listed for installation in full-sized Pentair, American, PacFab, and Purex niches.
Benefits
Bright traditional white pool lighting
Reliable replacement for many existing Amerlite fixtures
Long 100-foot cord supports larger pool layouts
Durable stainless-steel construction
Compatible with common full-size pool light niches
Serviceable incandescent design
Trusted Pentair Amerlite platform
Specifications
| Specification | Details |
|---|---|
| Brand | Pentair |
| Product Line | Amerlite |
| Product Type | Underwater Incandescent Pool Light |
| SKU | 78949100 |
| Manufacturer Part Number | 78949100 |
| Barcode / UPC | 788379650896 |
| Light Color | White |
| Voltage | 120V |
| Wattage | 400W |
| Cord Length | 100 ft |
| Lamp Type | Incandescent |
| Bulb Type | R-40 Incandescent |
| Face Ring | Stainless Steel |
| Shell Material | Stainless Steel |
| Lens | Prismatic Tempered Glass |
| Lens Size | 8-3/8 in |
| Application | Inground Pool |
| Niche Type | Full-Size Wet Niche |
| Compatible Niches | Full-sized Pentair, American, PacFab, and Purex niches |
| Standards / Approvals | UL Listed / CSA Certified |
| Condition | New |
Customer-Facing Q&A
Q: Is the Pentair 78949100 a pool light or spa light?
A: The Pentair 78949100 is an underwater incandescent light commonly used for inground pool applications.
Q: What voltage is this light?
A: This model operates on 120V.
Q: How long is the cord?
A: This Amerlite model includes a 100-foot cord.
Q: What wattage is the bulb?
A: This model uses a 400-watt incandescent lamp.
Q: Is this a white or color light?
A: This is a white incandescent pool light. Optional colored lens accessories may be available separately.
Q: Will this fit my existing niche?
A: Amerlite fixtures are UL Listed for full-sized Pentair, American, PacFab, and Purex niches. Always confirm your existing niche and fixture before ordering.
Q: Does this require a transformer?
A: No. This is a 120V light and does not use a 12V transformer. It must be connected to a properly protected 120V pool light circuit.
Q: Is professional installation required?
A: Yes. Pool lights should be installed by a qualified pool professional or licensed electrician following all local electrical codes.
Confirm Before Ordering
Confirm your existing light model, voltage, wattage, cord length, niche size, and face ring style before ordering. This is a 120V incandescent pool light with a 100-foot cord and must be installed on a properly protected pool light circuit.