The answer to 'lighting installation burning smell' is that a burning smell coming from a newly installed light fixture is often a sign of a serious electrical issue that requires immediate attention. This could be caused by incorrect wiring, a short circuit, or overheating due to an incompatible light bulb or fixture. It's important to shut off power to the circuit immediately and investigate the source of the problem before continuing to use the light.
If you are not comfortable troubleshooting electrical issues, it's best to call a licensed and insured electrician to diagnose and resolve the problem. Attempting DIY electrical work with a burning smell could lead to further damage or even a fire hazard. An electrician can safely identify the root cause and make any necessary repairs or replacements to restore safe, proper operation of the lighting circuit.