AMP® 150 Watt (12V/15V) Clamp-Connect Multi-Tap Low Voltage Transformer

Featuring our new Clamp-Connect terminal blocks - fast, easy, and secure. This 150-watt low voltage transformer features a toroidal core, 12v & 15v taps, stainless steel enclosure, and control receptacles - perfect for LED systems - lasts a lifetime. 

In stock


AMP® 150 Watt (12V/15V) Clamp-Connect Multi-Tap Low Voltage Transformer

The low voltage transformer is at the heart of every landscape lighting system. It converts the 120V house current to a low voltage current (either 12 or 15 volts). The efficiency of this conversion determines how well the transformer controls the voltage output, and how much energy is consumed in the process. AMP® transformers are the most efficient in the industry. With high quality toroidal cores and robust wiring and internal components, these transformers provide a highly stable source of current with very low energy consumption. Use of AMP® transformers ensures that the low voltage landscape lighting system runs at optimal efficiency for a lifetime of operation.


  • New Clamp Connect Terminals - No Tools required for a quick, solid connection.
  • Highly efficient toroidal core – runs cooler, generates less noise, with less voltage loss under load.
  • 12v and 15v taps compensate for voltage loss across a range of applications.
  • Terminals rated for use of up to 10-gauge wire.
  • Photocell & timer receptacles for a variety of control scenarios.
  • Stainless steel body with hinged lid.
  • Magnetic circuit breakers; auto-reset integrated thermal breaker (in core).
  • Color-coded wire markers, system record form, and installation manual included.
  • 60" 18 AWG SJTW cord and plug set.
  • ETL® Listed for safe operation and to comply with UL standards and electrical codes.
  • Listed for both indoor and outdoor use.
  • Hassle-free Lifetime Warranty (for both residential and commercial projects)

For Your Information: Transformer Technology

Magnetic Transformers. There are two types. These vary by the type of core:

  1. Laminated/stacked cores (also known as EI type). Laminated or stacked windings have sheets wrapped in copper wire that are then stacked or laminated together to make a core. This is the more common, less expensive method for manufacturing a core. These are less efficient, run hotter and are noisier than toroidal cores.
  2. Toroidal cores. These are one solid unit shaped like a donut and have the windings wrapped around the donut, in and out of the donut hole. Toroidal cores are more efficient, experience less buzz, and run cooler but are more expensive to make.

What are Electronic Transformers?

This transformer type converts the 120-volt current to 12 volts by first increasing the frequency of the current (from 60 Hz to as high as 20,000 Hz). The increased frequency allows the use of a miniature core enabling the transformer to be very small, light, and inexpensive. The biggest downside is that their high-frequency current may not be compatible with LED circuits. These currents also suffer from extensive voltage loss compared to magnetic types. A 12-volt electronic transformer must be positioned within about 10 ft. of the fixture. Electronic transformers are also subject to overheating and premature failure.

More Information
  • Non-brushed 304 stainless steel with removable cover
  • Stainless Steel
  • 60″ black 18 AWG SJTW cord and plug set
  • 150W
  • 120V
  • 12V and 15V
  • Up to 10-gauge wire
  • Secondary: (1) 25A Magnetic Circuit Breakers; Primary: Automatic (auto reset) Thermal Breaker in core
  • ETL® Listed; Suitable for Indoor & Outdoor Use
  • 13.75″ height x 6″ width x 5.5″ depth
  • 13.0lbs