Deliver reliable, multi-tap power distribution for professional exterior and submersible illumination with the T-LT150 Heavy-Duty Landscape Lighting Transformer. Encased in a rugged stainless steel enclosure with a natural finish, this 150W single-circuit transformer converts standard 120V AC household current down to 12V, 13V, 14V, or 15V AC output taps to effectively compensate for voltage drop across long wiring runs.
Designed for effortless installation and long-term field maintenance, the T-LT150 features a removable hinged door with a moisture-resistant gasket, top and bottom mounting slots, and a removable bottom plate with pre-punched knockouts (3X½", 3X¾" conduit, and 1X1¾" cable feeder) for clean conduit and cable entry. It includes an oversized terminal block to comfortably accommodate multiple low-voltage cable home runs, options for plug-in mechanical or digital timers, and a 6-foot heavy-gauge, grounded, water-resistant power cord with a molded plug.
Safety and system protection are paramount: the primary side features built-in thermal shut-off, while the secondary side is protected by a high-performance magnetic circuit breaker that doubles as a master ON/OFF rocker switch. ETL listed to U.S. safety standards (UL1838) for landscape lighting and certified Pool & Spa ready, the T-LT150 is fully approved for use with submersible water fixtures and compatible with low-voltage magnetic dimmers.
Key Features:
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Rugged Stainless Steel Enclosure: Premium stainless steel housing with a removable hinged door, moisture-resistant gasket seal, and a lifetime enclosure warranty.
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Multi-Tap Voltage Output: Provides 12V, 13V, 14V, and 15V AC taps to easily correct voltage drop across long landscape cable distances.
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Pool & Spa Rated Safety: ETL listed to UL1838 U.S. safety standards, certified Pool & Spa ready, and suitable for submersible lighting installations.
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Flexible Controls & Protection: Fully compatible with low-voltage magnetic dimmers, primary thermal shut-off, secondary magnetic circuit breaker/switch, and factory or field-installed timer and photocell options.
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Contractor-Friendly Wiring: Equipped with an oversized terminal block for multiple cable connections, removable bottom knockout plate, top/bottom mounting slots, and a 6-foot grounded water-resistant power cord.
Technical Specification Table
| Technical Specification | T-LT150 Heavy-Duty Stainless Steel Transformer |
| Product Model Numbers | T-LT150, T-LT150-DT, T-LT150-DTP, T-LT150-P, T-LT150-T, T-LT150-TP |
| Transformer Type | Single-Circuit Magnetic Low-Voltage Transformer |
| Wattage Capacity | 150 Watts |
| Primary Input Voltage | 120V AC, 60Hz |
| Secondary Output Taps | 12V, 13V, 14V, 15V AC Multi-Tap |
| Dimming & Controls | Compatible with Low-Voltage (12V) Magnetic Dimmer Switches & Controls |
| Primary Protection | Automatic Thermal Shut-Off |
| Secondary Protection | High-Performance Magnetic Circuit Breaker (Functions as ON/OFF Rocker Switch) |
| Enclosure Material & Finish | Stainless Steel Housing; Natural Stainless Steel Finish |
| Cable / Conduit Access | Removable Bottom Plate with 3X½” or 3X¾” Conduit Knockouts & 1X1¾” Cable Feeder |
| Terminal Block Specs | Large Oversized Terminal Block for Multiple Low-Voltage Cable Connections |
| Power Cord Specs | 6-Foot Heavy-Gauge Grounded & Water-Resistant Power Cord with Molded Plug |
| Dimensions | 5-5/8" W x 11-1/2" H (143 mm x 292 mm) |
| Shipping Weight | 15 lbs |
| Safety Certifications & Ratings | ETL Listed to UL1838 U.S. Safety Standards; Pool & Spa Ready (Suitable for Submersible Fixtures) |
| Optional Accessories | T-TR-FIP Photocell, T-FIT Mechanical Plug-in Timer, T-FIDT Digital Plug-in Timer, CX-DIM_100 Inline Dimmer |
| Warranty | Lifetime Warranty on Stainless Steel Enclosure; 10-Year Warranty on Coils; 1-Year Warranty on Timers, Photocells, & Accessories |
Product Logic & Ordering Catalog Matrix
| Model | Wattage | Input Voltage | Output Taps | Included Controls | Enclosure Material | Finish |
| T-LT150 | 150W | 120V AC | 12V, 13V, 14V, 15V | Standard (No Timer/Photocell) | Stainless Steel | Stainless Steel (SS) |
| T-LT150-T | 150W | 120V AC | 12V, 13V, 14V, 15V | Mechanical Timer | Stainless Steel | Stainless Steel (SS) |
| T-LT150-DT | 150W | 120V AC | 12V, 13V, 14V, 15V | Digital Timer | Stainless Steel | Stainless Steel (SS) |
| T-LT150-P | 150W | 120V AC | 12V, 13V, 14V, 15V | Photocell | Stainless Steel | Stainless Steel (SS) |
| T-LT150-TP | 150W | 120V AC | 12V, 13V, 14V, 15V | Mechanical Timer + Photocell | Stainless Steel | Stainless Steel (SS) |
| T-LT150-DTP | 150W | 120V AC | 12V, 13V, 14V, 15V | Digital Timer + Photocell | Stainless Steel | Stainless Steel (SS) |
Packaging & Ordering Accessories
Standard Included Hardware:
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T-LT150 Stainless Steel Transformer Enclosure Assembly.
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6-Foot Grounded Water-Resistant Power Cord with Molded Plug.
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Removable Bottom Plate with Conduit/Cable Knockouts.
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Pre-configured Timer/Photocell Units (per ordering model variant).
Field-Installed Accessories & Replacement Components (Order Separately):
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Photocell: T-TR-FIP (Plug-and-Play Field-Installed Photocell).
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Timers: T-FIT (Field-Installed Mechanical Plug-In Timer), T-FIDT (Field-Installed Digital Plug-In Timer).
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Dimmer: CX-DIM_100 (Inline Low-Voltage Dimmer).
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Wire Connectors: Silicone-Filled Water-Resistant Direct-Bury Wire Nuts.