1. Match the Base and Voltage

Chandeliers may use G4 or G9 capsules, or candle-shaped bulbs with E12 or E14 screw bases, depending on the fixture. Check the existing bulb and the chandelier’s specifications before ordering.

Match both the base and the rated input voltage. For low-voltage installations, also confirm the bulb’s AC/DC requirements and compatibility with the existing power supply. A bulb that fits the socket is not necessarily electrically compatible.

2. Check Size and Appearance

Measure the available space around the socket, including clearance inside any glass shade or cover. Compare this with the replacement bulb’s overall length and maximum width.

The bulb’s finish also affects the chandelier’s appearance:

• Clear bulbscan create a sparkling effect in decorative fixtures.
• Frosted bulbsprovide a softer, more diffuse appearance.

Choose the finish that suits the chandelier, and evaluate a sample with the fixture switched both on and off.

3. Choose Brightness by Lumens

Lumens measure light output; watts measure power consumption. Compare lumen ratings when choosing brightness rather than relying only on wattage or “equivalent wattage.”

The appropriate output depends on room size, ceiling height, other lighting, and whether the chandelier provides general illumination or mainly decoration.

4. Select Color Temperature and CRI

For a warm, welcoming atmosphere, 2700K–3000K is a practical starting point for homes, restaurants, and hospitality spaces. Use the same color temperature throughout one chandelier to maintain a consistent appearance.

Also check the Color Rendering Index (CRI), which describes how faithfully colors appear under the light. CRI 80 or above is a common baseline for interior lighting; CRI 90 or above may suit projects with higher color-fidelity requirements.

5. Verify Dimming and Operating Conditions

If the chandelier uses a dimmer, select bulbs explicitly marked dimmable and confirm compatibility with the exact dimmer model. For G4 systems, include the transformer in this check.

Test the complete chandelier for smooth adjustment, stable low-level operation, flicker, and noise. Dimmer manufacturers may specify minimum and maximum lamp quantities for particular bulb models.