By day
Daylight white 4000 K
The desk and dark mornings: crisp, true colours (CRI 97) and a strong day signal. Off at dusk, when an evening bulb takes over.
- Brightness
- 1040 lm
- Day signal (MDER)
- 0.73
Ø 70 mm
125 mm
E27
Ø 70 × 125 mm E27
Best for
–
MDER
–
Noon sun 1.0Wax candle 0.2
Brightness
–
Colour temp
–
Spectrum · 10 nmwakes you up
420580780 nm
11sto step
Off
Vitae Day Only
1.400 Kč
incl. VAT · shipping at checkout
4000 K · CRI 97Daylight for the desk and dark mornings2-year warrantyMade in Czechia
In stock, ready to ship
Couldn't load pickup availability
Pickup available at Sázavská 2031/32
Usually ready in 1 hour
One light, for the day
Daylight, and nothing else.
Day Only is the 4000 K step of the Home Office bulb on its own: one mode, on and off with your switch.
Day signal: the melanopic daylight efficacy ratio (MDER). 1.0 is noon daylight; a warm white LED is about 0.44.
Product details
Description
Clarity for Productivity
A standalone lightbulb designed exclusively for your work and study spaces. Mirroring the natural daylight at 4000K with a high 97 CRI, it keeps you alert and enhances concentration. Crafted for simplicity, this 12W bulb embodies the DEN philosophy: no apps, no hassle, just pure focus. Ideal for those who require a dedicated, efficient light source for productivity, the Day Only lightbulb is your solution for a sharper, more vibrant workspace.
Daylight is a signal too
A bright morning sets the clock that lets you sleep tonight.
Day Only is the 4000 K step of the Home Office bulb, alone: crisp, true colours for the desk and the dark November mornings.
Switch it off at dusk and let an evening bulb take over.
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Questions
Before you ask.
How do I install it?
Screw it into any E27 lamp (it fits E26 too). One mode, on and off with your switch.
How do I use it?
On in the morning and through the working day; off at dusk, when an evening bulb takes over.
How bright is it?
About 1040 lm at 12 W: twice the day step of the Home Office bulb (DEN). 4000 K, CRI 97: colours look true, for work, drawing or make-up.
How big a room does it light?
A desk, a study, a kitchen on a dark morning. In a bigger room, pair it with Linear on a wardrobe.
How much blue light is in it?
On purpose, a lot: a daytime signal (MDER) of 0.73 at 4000 K, the signal that tells your body it is day. That is why it belongs to the day, not the evening.
Can I use it with a dimmer?
No, use an ordinary on/off switch.
Something else? Write to hi@vitaelight.com.