The answer to 'why is my landscape lighting' is that there can be several common causes for issues with landscape lighting, including faulty wiring, burnt-out bulbs, timer or sensor malfunctions, and power supply problems. Symptoms may include lights that won't turn on, flicker, or stay on all the time. Solutions can range from simple bulb replacements to more complex electrical repairs.
For minor issues, homeowners may be able to troubleshoot and fix the problem themselves. However, for more complex electrical work or safety concerns, it's best to call in a professional landscaping or electrical contractor to diagnose and resolve the issue properly.