The answer to 'lighting installation tripping breaker' is that a tripped circuit breaker when installing new lighting is often caused by an overloaded circuit, a short circuit, or a ground fault. Symptoms include the breaker tripping repeatedly when the lights are turned on, dimming or flickering lights, and potential burning smells or sparks.
Common solutions include checking for loose connections, ensuring the new lights are compatible with the circuit capacity, and replacing any damaged wiring or fixtures. If the issue persists, it's best to call a licensed electrician to properly diagnose and resolve the problem, as improper electrical work can be dangerous.