Choose light for the task and location: reading, general room lighting and decorative accents need different arrangements. Brightness, direction and glare matter more than a bulb's appearance or its largest electrical-power figure.

Check the fixture, socket and controls already installed. A compatible-looking bulb can still have the wrong voltage, dimensions or dimming behavior. Smart features add another layer of controller and network requirements.

Brightness and color

Compare lumens for useful light output and choose a color temperature suited to the room and task. Wattage describes electricity use, not equal brightness across technologies. For detailed work, color rendering and directed light may matter. Avoid assuming the highest brightness or coolest color is more comfortable in every space.

Fixture and dimmer fit

Verify base type, operating voltage, dimensions and whether the bulb is suitable for enclosed or other specific fixtures. Dimmable bulbs need compatible dimmers. Check minimum brightness behavior when available. A smart bulb, remote-controlled lamp and wall switch may require different systems, and a platform logo does not guarantee every function.

Installation and running cost

Follow fixture ratings, installation and moisture-location requirements. Mains electrical work may require a qualified professional. Compare rated life under stated conditions, warranty and replacement availability. Integrated lights can be convenient but may not allow a simple bulb replacement. Include necessary controllers or compatible drivers in the comparison.