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Simple repairs like replacing bulbs can be DIY projects, but professionals should handle significant electrical repairs to ensure safety and compliance with electrical standards.

Modern outdoor light fixtures are waterproof and weather resistant, and, provided they’re installed correctly and by a professional, the fixture and wiring can last for 20 to 30 years or more. The lifespan will depend largely on the quality of the fixture. The lifespan of the bulb will depend on the type of light you install:

• CFL bulb (for sustained use): 15,000 hours

• Halogen bulb (mostly for security): 2,000 hours

• HID bulbs (for security): 12,000 hours

• Incandescent bulb: 1,000 hours

• LED bulb: 50,000 hours

A motion detector light may need to be reset due to a number of technical issues. These can include faulty or misadjusted sensors and burned-out bulbs. You may also need to reset a motion sensor after an electrical surge or a power outage, as these can change a light’s settings and cause it to function differently.

Cold weather can cause older incandescent Christmas lights to fail by causing cracks in the finish or the glass itself. Modern LED lights are affected in the opposite way and perform even better as the temperature drops.