Installing up to 5 bulbs is generally a safe and straightforward . Here's what you'll need to know:

Safety First:

Turn off the power: This is crucial. Locate the light switch controlling the fixture where you'll be installing the bulbs and turn it off. If it's a fixture on a separate circuit, you might need to turn it off at the breaker box. Use a voltage tester to confirm the power is off at the fixture before proceeding.
Tools You Might Need:

Step ladder (if the fixture is high)

Replacement bulbs (ensure compatibility with the fixture - size, type, wattage)

Bulb Types and Compatibility:

There are various bulb types available (incandescent, LED, CFL, halogen). Choose bulbs compatible with the fixture's base type (e.g., screw-in base - the most common) and wattage rating. The fixture will usually have the compatible bulb type and maximum wattage indicated on a sticker or inscribed on the socket itself. Exceeding the wattage rating can damage the fixture.

Installation Steps:

Unscrew the old bulbs (if applicable):  Gently twist the old bulb counter-clockwise and remove it from the socket.

Prepare the new bulbs:  Handle the new bulbs by the base to avoid leaving fingerprints on the glass (which can reduce bulb life for halogen bulbs).

Screw in the new bulbs:  Screw the new bulbs clockwise into the sockets until they are snug but not overtightened.

Turn on the power:  Turn on the light switch and test the new bulbs.

Additional Tips:

Dispose of old bulbs responsibly. Many hardware stores or recycling centers accept used bulbs.

If you're replacing multiple bulbs in a chandelier or fixture with many bulbs, replace them one at a time to avoid accidentally overloading the circuit (especially if using higher wattage bulbs).

Consider using LED bulbs for their energy efficiency and long lifespan.

When to Call a Professional:

If the fixture is high or difficult to reach safely, it's wise to have someone assist you or call a professional electrician for help.

If the fixture requires special tools for bulb replacement or seems wired differently from standard fixtures, consult a qualified electrician to avoid damaging the fixture or causing electrical problems.

If you're uncomfortable working with electrical fixtures at all, it's always best to err on the side of caution and call a professional electrician.