Degree-true heating
A dual sensor reads the water, not the casing, and lands within half a degree of your target — green tea at 80, pour-over at 94, every time.
LUMEN — the smart kettle that holds your perfect degree
LUMEN
Boil less. Brew exactly.
LUMEN heats water to the exact degree you ask for, holds it there for a full hour, and glows softly as it warms — a kettle you can read from across the room.
Three reasons it earns the counter space
Hold without re-boiling
Gentle pulses keep your set temperature steady for up to an hour, so the second cup tastes exactly like the first — no rolling re-boil, no flat water.
Light you can read
The glass body shifts from deep amber to bright white as the water warms, so you know where it stands from across the kitchen — no app required.
The numbers that matter
- Capacity
- 1.7 L
- Power
- 1850 W
- Temperature range
- 40–100 °C
- Temperature hold
- Up to 60 minutes
Reserve yours from the first run
The first production run ships this autumn and is limited to 5,000 kettles. Reserve one by email — no payment today, and you can step back at any time before it ships.
Pre-order by emailWe reply within two working days with your reservation number.