TL;DR
A low-voltage transformer is the power supply that steps household 120-volt current down to the 12 to 15 volts used by landscape lighting, with multi-tap models offering several output voltages to offset voltage drop on long cable runs. Units are sized in watts — commonly 150 to 900 — and should carry no more than about 80 percent of their rating once all fixtures are connected.
What it means
A low-voltage transformer is the power supply that steps household 120-volt current down to the 12 to 15 volts used by landscape lighting, with multi-tap models offering several output voltages to offset voltage drop on long cable runs. Units are sized in watts — commonly 150 to 900 — and should carry no more than about 80 percent of their rating once all fixtures are connected. Stainless enclosures, built-in timers, and photocell ports are the features that distinguish professional-grade units.
Where it sits in the glossary
Low-voltage transformer is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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