Pro-Trade TR1 transformers are built for convenience and reliability. Backed by a lifetime warranty, Pro-Trade TR1 transformers have a stainless steel case and a removable, lockable door. Available in 150W and 300W options, TR1 transformers feature two common taps, which is ideal for jobs with multiple runs. TR1 transformers have 12V, 13V, 14V and 15V secondary taps making it easier to ensure proper voltage gets delivered to every fixture.