Product Overview
The J&J Electronics Pool Transformer | TR-300-PP is a 300-watt low-voltage transformer designed to safely power compatible pool, spa, and fountain lighting systems. It steps standard 120V input power down to low-voltage output for underwater lighting applications, helping support safer and code-compliant pool light operation.
This transformer is designed for harsh poolside environments where humidity, heat, and chemical exposure are common. It is suitable for residential and commercial lighting applications, including swimming pools, spas, and fountains. J&J / Hayward listings identify the TR-300-PP as a 300W, 120V low-voltage transformer with 12V–14V output capability, UL pool-standard approval, and design features made for pool and commercial environments.
With 1" and 3/4" conduit compatibility, removable mounting brackets, and a compact enclosure, the TR-300-PP is a practical transformer option for new lighting installations, remodels, and replacement projects.
Ideal For
- Pool and spa lighting systems
- Low-voltage underwater lights
- J&J Electronics LED pool lights
- J&J ColorSplash lighting systems
- Pool light replacement projects
- New pool construction
- Pool remodels and renovations
- Fountain lighting applications
- Residential pool equipment pads
- Commercial pool and spa facilities
- Installations requiring up to 300W transformer capacity
- Professional pool lighting installations
Key Features
- 300W transformer capacity — supports compatible pool, spa, and fountain lighting loads up to 300 watts.
- 120V input power — designed to connect to standard 120V supply when installed correctly.
- Low-voltage output — steps power down for compatible low-voltage pool and spa lights.
- 12V–14V output taps — provides multiple low-voltage output options to help compensate for voltage drop in longer lighting runs.
- 2.5A input rating — supports the listed 300W transformer load at 120V input.
- 1" and 3/4" conduit compatibility — allows flexible conduit connection options during installation.
- UL pool-standard approved — built for pool and spa lighting applications requiring listed transformer equipment.
- Outdoor poolside design — engineered for high humidity, heat, and chemical exposure around pools and spas.
- Noise-reducing coil design — helps reduce transformer operating noise compared with older transformer designs.
- Tool-less access design — supports easier service access where applicable by enclosure configuration.
- Removable mounting brackets — simplifies positioning during installation.
- Compact enclosure — easier to fit on crowded equipment pads or lighting control areas.
Benefits
The J&J Electronics TR-300-PP helps deliver safe, reliable low-voltage power to compatible pool and spa lighting systems. Its 300W capacity makes it suitable for powering multiple low-voltage lights as long as the total connected load remains within the transformer rating.
The multiple output taps are especially useful for installers working with longer cord runs or multiple fixtures, where voltage drop may affect lighting performance. The transformer’s pool-rated design helps it stand up to moisture, heat, and chemical exposure commonly found around pool equipment areas.
For pool professionals, the TR-300-PP provides a dependable transformer option for J&J Electronics fixtures and many compatible low-voltage pool and spa lights.
Specifications
| Specification | Details |
|---|---|
| Product Name | J&J Electronics Pool Transformer, 300W, 120V |
| Brand | J&J Electronics |
| Parent / Related Brand | Hayward / J&J Electronics |
| Part Number | TR-300-PP |
| SKU | TR-300-PP |
| Alternate Item Number | 25037 |
| UPC / GTIN | 807154230730 |
| Product Type | Pool and spa light transformer |
| Transformer Type | Low-voltage lighting transformer |
| Wattage Capacity | 300W |
| Input Voltage | 120V |
| Input Current | 2.5A |
| Output Voltage | 12V–14V AC output taps |
| Common Output Taps | 12VAC, 13VAC, 14VAC |
| Input Frequency | 60 Hz |
| Conduit Compatibility | 1" and 3/4" conduit |
| Applications | Swimming pools, spas, and fountains |
| Compatible Lighting Type | Low-voltage pool, spa, and fountain lights |
| Housing / Finish Reference | Painted / powder-coated outdoor enclosure |
| Mounting Style | Wall / equipment-area mounted enclosure |
| Mounting Brackets | Removable mounting brackets |
| Standards / Listing | Approved to UL pool standards |
| Installation Location | Outdoor pool equipment area / lighting control area |
| Equipment Category | Pool and spa lighting electrical equipment |
| Professional Installation Recommended | Yes |
| Sold As | Each |
Included Components
- 1 × J&J Electronics TR-300-PP 300W pool and spa light transformer
- Enclosure with transformer assembly
- Removable mounting bracket hardware, depending on supplier packaging
- Manufacturer-supplied installation documentation
Pool lights, junction boxes, conduit, breakers, GFCI protection, bonding materials, wiring, automation relays, wall switches, and installation labor are sold separately unless specifically included by the supplier.
Compatibility Notes
The TR-300-PP is designed for compatible low-voltage pool, spa, and fountain lighting systems with a total connected load that does not exceed 300W.
Common compatibility references include:
- J&J Electronics low-voltage LED pool and spa lights
- J&J ColorSplash LED lighting systems
- Compatible 12V pool and spa lights
- Pool, spa, and fountain lighting applications
- New construction and lighting retrofit projects
- Installations requiring 12VAC, 13VAC, or 14VAC transformer taps
Always confirm the light voltage, total wattage, cord length, voltage drop, electrical code requirements, and transformer sizing before ordering.
Installation Notes
This transformer should be installed by a qualified pool professional or licensed electrician. Pool and spa lighting equipment involves electrical work around water and must comply with manufacturer instructions, bonding requirements, grounding requirements, GFCI protection, junction box placement, conduit requirements, and all applicable electrical codes.
Before installation, calculate the total wattage of all connected lights and confirm it does not exceed the transformer’s 300W capacity. Use the proper output tap based on the lighting system requirements and voltage drop calculation.
Do not connect low-voltage pool lights directly to line voltage. Always use a properly rated pool and spa lighting transformer.
Customer-Facing Q&A
Q: What is the J&J Electronics TR-300-PP?
A: It is a 300W pool and spa light transformer designed to power compatible low-voltage pool, spa, and fountain lights.
Q: What is the SKU?
A: The SKU is TR-300-PP.
Q: What is the UPC / GTIN?
A: The UPC / GTIN is 807154230730.
Q: What is the alternate item number?
A: The alternate item number is 25037.
Q: What is the transformer capacity?
A: This transformer is rated for up to 300 watts.
Q: What input voltage does it use?
A: It uses 120V input power.
Q: What output voltage does it provide?
A: It provides low-voltage 12V–14V AC output taps, commonly 12VAC, 13VAC, and 14VAC.
Q: What is the input amperage?
A: The listed input current is 2.5A.
Q: What conduit sizes does it support?
A: It supports 1" and 3/4" conduit connections.
Q: Can it power multiple pool lights?
A: Yes, as long as the combined wattage of all connected lights does not exceed 300W.
Q: Is this for 120V pool lights?
A: No. This transformer takes 120V input and provides low-voltage output for compatible low-voltage lights.
Q: Is this UL approved for pool use?
A: Yes. It is listed as approved to UL pool standards.
Q: Should this be professionally installed?
A: Yes. Professional installation is recommended because pool lighting transformers require proper electrical wiring, grounding, bonding, conduit, and code-compliant setup.