Block Lamp Brightness and Bulb FAQ

Quick answer

The Block Lamp uses a standard Edison screw (E27) bulb, and brightness depends on the bulb you choose. The included bulb provides warm ambient light, but you can swap it for dimmable or higher-lumen options.

Block Lamp bulb questions answered

What bulb base does the Block Lamp use?

The Block Lamp uses a standard Edison screw (E27) base. This is the most common household bulb size, making replacements easy to find.

Can I use an LED bulb?

Yes, any E27 LED bulb works. LED bulbs run cooler and last longer, but choose one with a warm color temperature (2700K-3000K) to maintain the cozy feel. Avoid bulbs with built-in fans or large heatsinks that may stick out. Check the bulb's physical length so it doesn't protrude beyond the glass.

How bright is the Block Lamp?

Brightness depends on the bulb. The included bulb provides soft ambient light (roughly equivalent to a 40W incandescent). For task lighting, swap to a 60W-equivalent LED (800 lumens) or higher. Higher-lumen bulbs will make the filament more visible through the glass.

Can I use a dimmable bulb?

Yes, the Block Lamp supports dimmable E27 bulbs. You'll need a dimmer switch on your wall or a plug-in dimmer. Not all LED bulbs are dimmable, so check the packaging. Test the dimmer range – some LEDs flicker at low levels.

How do I replace the bulb?

Gently lift the glass block straight up off the base. Unscrew the old bulb, screw in the new one, and lower the glass back onto the base. No tools required. Handle the glass block carefully – it's solid but can chip on hard surfaces.

Product facts

• Block Lamp: Harri Koskinen’s Block Lamp is a modern classic. The contrast between the solid glass “ice cube” and the industrial Edison bulb creates a unique visual tension – part sculpture, part functional light. Light bulb is included! The included bulb is designed for the lamp's aesthetic, but you can experiment with other E27 bulbs to change brightness or color temperature.