Intermatic

Intermatic PX300 300W Pool Light Transformer 12V

SKU: I953_PX300 UPC: 078275024106
Regular price $143.92 Sale price$198.52you save $54.60
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Quick Facts
300 W Lighting Capacity
120 VAC Input
12/13/14 VAC Output Taps
Type 3R Steel Enclosure
1-Year Limited Warranty
Key Benefits +
  • Provides 300 W capacity for compatible lighting
  • Offers three output taps for installation needs
  • Includes overload circuit protection
  • Uses a Type 3R enclosure for outdoor mounting
  • Includes top and bottom mounting brackets
How to Use +
1 Have a licensed electrician or qualified pool professional verify the fixture requirements and total load. Disconnect power before installation or service. Follow Intermatic's instructions for mounting, wiring and output-tap selection. Have the installer verify voltage at the lights before operation; do not submerge the transformer.
Specifications +

Brand: Intermatic

Model: PX300

SKU: I953_PX300

Type: Pool and spa safety transformer

Capacity: 300 W

Input: 120 VAC, 60 Hz, 3 A maximum

Output Taps: 12, 13 or 14 VAC

Enclosure: Type 3R, beige steel

Dimensions (H × W × D): 7.25 × 5.25 × 4.5 inches

Protection: Built-in overload circuit protection

Warranty: One-year limited manufacturer warranty

UPC: 078275024106

Buy with Confidence from Benchmark Pool Supply +

Benchmark Pool Supply can help you match the PX300 to your lighting requirements. Confirm fixture voltage, combined load and cable run before ordering. Intermatic lists a one-year limited warranty, subject to its terms.

Buy with Confidence from Benchmark Pool Supply

  • Trusted pool professionals
  • 100% Genuine Manufacturer Parts Guaranteed
  • Shipping options for eligible products
Returns subject to product eligibility
Expert Product Support
Full Product Description +

High-wattage pool lighting systems require a transformer that can safely deliver consistent low-voltage power without overheating or voltage drop. The Intermatic PX300 300W Pool Light Transformer is designed to convert standard 120V input into safe 12V low-voltage output for larger or multi-fixture pool and spa lighting installations.

This transformer is commonly used when multiple pool lights, spa lights, or high-output fixtures are installed on the same circuit. Its higher wattage capacity allows it to support greater lighting loads while maintaining stable voltage, helping lights operate at proper brightness without stressing bulbs or wiring.

Built for outdoor pool environments, the PX300 is a dependable solution for both new lighting installations and upgrades where increased wattage capacity is required.


Supports Larger Pool Lighting Loads

As lighting systems expand, undersized transformers can struggle to deliver adequate power. The Intermatic PX300 provides up to 300 watts of capacity, making it suitable for pools with multiple lights or higher-wattage fixtures.

By delivering sufficient power, this transformer helps prevent dim lighting, uneven brightness, and premature lamp failure caused by voltage drop or overload conditions.


Safe 120V to 12V Voltage Conversion

Pool lighting systems rely on low-voltage operation to reduce electrical risk around water. The PX300 steps down standard household voltage to 12V, providing the safe output required for compatible underwater and low-voltage pool lights.

This regulated conversion supports safe nighttime operation and helps meet common electrical safety standards for pool environments.


Weather-Resistant Construction for Outdoor Installation

Transformers installed near pool equipment must withstand moisture, heat, and outdoor exposure. The Intermatic PX300 features a durable, enclosed housing designed to protect internal components from environmental conditions.

Its construction supports reliable, long-term operation when mounted near equipment pads, lighting junction boxes, or dedicated lighting enclosures.


Why Choosing the Correct Pool Light Transformer Matters

Proper transformer sizing is critical for lighting performance and safety.

Using a higher-capacity transformer helps:

  • Power multiple pool lights reliably

  • Prevent voltage drop across longer wire runs

  • Maintain consistent light brightness

  • Support safe low-voltage pool lighting systems

Selecting the right wattage transformer protects both lighting equipment and electrical components.


Product Specifications

Specification Details
Product Name Intermatic PX300 Pool Light Transformer
Model Number PX300
SKU I953_PX300
Manufacturer Intermatic
Input Voltage 120V
Output Voltage 12V
Power Rating 300 watts
Transformer Type Low-voltage pool light transformer
Application Pool and spa lighting
Installation Hardwired, fixed mount

Buy with Confidence from Benchmark Pool Supply

When you purchase the Intermatic PX300 300W Pool Light Transformer from Benchmark Pool Supply, you’re buying from a locally owned pool supply retailer that understands electrical safety, lighting performance, and real-world pool installations.

Benchmark Pool Supply supports homeowners and professionals with reliable electrical components, knowledgeable guidance, and convenient online ordering with in-store pickup. We focus on proven products that deliver consistent, long-term performance.

Intermatic PX300 300W Pool Light Transformer 12V
Regular price $143.92 Sale price$198.52

Frequently Asked Questions

What voltage does the PX300 provide?

What voltage does the PX300 provide?

It accepts 120 VAC and provides selectable 12, 13 or 14 VAC output taps. The installer must match the tap to the lighting and cable requirements.
What is the PX300's maximum lighting load?

What is the PX300's maximum lighting load?

The rating is 300 W. Add the connected fixture loads and have the installer check conductor sizing and voltage drop.
Can the PX300 be mounted outdoors?

Can the PX300 be mounted outdoors?

Yes. It has a Type 3R steel enclosure. Follow the mounting instructions and keep it above locations where it could be submerged.
Does the PX300 work with every pool light?

Does the PX300 work with every pool light?

No. Use it only with compatible low-voltage fixtures. It is not a power source for 120V lamps.
What warranty does Intermatic list for the PX300?

What warranty does Intermatic list for the PX300?

Intermatic specifies a one-year limited warranty. Coverage and claims are subject to the manufacturer's warranty terms.