When designing a landscape lighting system with a 150-watt transformer, it's important to avoid overloading it. Ideally, you should aim to use only 80-85% of the transformer's capacity to ensure optimal performance and longevity. This buffer accounts for voltage drop, temperature changes, and allows room for future expansion.

Tips for Wire Sizing:

When determining wire size, plan for the system to handle the maximum potential wattage and current draw, especially if future expansion is anticipated.