4 Watt LED Filament Pure-Z NEO | Bright as 38 watts, 400 lumens | CRI 97 | flicker-free | warm white | E14

LED filament bulbs with 4 watts in this quality class represent the latest in lighting technology and are highly recommended from a building biology perspective. Equivalent in light output to a 38-watt incandescent bulb, with a very high color rendering index of CRI 97.

This LED lamp produces a friendly, natural warm white light and is nearly flicker-free. The measured value of pulsing light is below 1 percent.

Delivery time: approx. 1-3 working days | formerly energy class A+

In stock

SFERICS® field-tested and recommended

 14,95 ( 12,56 excl. VAT)

4 Watt LED Filament Pure-Z NEO with E14 Socket. A Natural Feel-Good BIO LIGHT with a Very High Color Rendering of CRI 97 and Nearly Flicker-Free. Not Dimmable.

The nearly continuous spectrum of the emitted light is close to that of incandescent or halogen lamps but without the heat radiation component (IR or infrared radiation). In addition to the designation “recommended for residential wellness,” this LED bulb in the clear glass 6,4-watt variant received a “GOOD” rating from ÖKO-TEST following a performance test.

The Pure-Z NEO LED produces a consistent, sunlight-like feel-good light, with the flicker component reduced to a minimum of <1%. This LED serves as a counterpart to our full-spectrum daylight lamps, which are designed for biologically beneficial lighting during the day, especially for gloomy weather (fog, clouds, etc.) and the sun-reduced months of the year. By contrast, the Pure-Z NEO LED is ideal year-round as a high-quality warm white light for cozy evenings at home—a true feel-good light.

Pure-Z facts

In the world of LEDs, it’s the details that matter most!

he colour rendering index (Ra or CRI) describes the effect of light on the colour appearance of objects by comparison with daylight (not dependent on colour temperature). Incandescent lamps have a very high CRI of up to 100, this LED achieves the incredible Ra or CRI of 97. The higher the CRI is at 100, the more natural and real colours are.

The colour temperature is a measure of the respective colour impression of a light source. Warm light colours (warm white, 2700 K) have a low Kelvin number, cold light colours (cold white, 5000 K) have a high Kelvin number.

The light exit angle of 360º is very well suited for all applications where incandescent lamps have been used up to now. Ideal for lighting an entire room as all-round light.

LED lamps are made of a semiconductor and operated with an integrated ballast. The resulting voltage generates “light flicker” (pulsation). This pulsation could be reduced to a minimum (below 1 %) with the “filament” LED.

Electrosmog: The Pure-Z-NEO LED was designed to generate small technical fields comparable to those of a light bulb.

Consideration of the time of day: The light spectrum of the “filament” has a slightly higher blue component compared to incandescent lamps or halogen lamps. According to medical experts, this influences the human waking state or sleep (melatonin formation). We therefore recommend using LEDs in “active areas” (desks, kitchens, corridor lighting, etc.), at reading places in the evenings, at bedside tables or in the period before going to bed, to continue using incandescent lamps or G9 halogen lamps.

4 Watt LED Filament Pure-Z NEO | Bright as 38 watts, 400 lumens | CRI 97 | flicker-free | warm white | E14
Neo LED icon

LED spot Pure-Z NEO almost flicker-free!

Flicker rate Pure-Z LED

Performance data of this LED illuminant brought to the point

  • E14
  • 4 watts (corresponds to the light output of a 38 Watt light bulb)
  • 400 lumen luminous flux
  • Maximum flicker reduced – pulsating light / pulsation < 1%
  • Color rendering index: CRI 97, for colours that are as authentic and eye-friendly as possible
  • Color temperature: 2700 K (Kelvin), for warm white light
  • Average life: 15.000 hours
4 Watt LED Filament Pure-Z NEO | Bright as 38 watts, 400 lumens | CRI 97 | flicker-free | warm white | E14
Light spectrum of Pure-Z NEO LED
Light spectrum energy-saving lamp, typical
Schematic oscillogram of an energy-saving lamp
EU Energylabel 2021

The new EU energy label since 2021

The new EU energy label for light sources, which will apply from September 1st, 2021, not only looks different, it is also based on new, stricter classification criteria. As a result, lamps and lights are classified in lower energy classes. However, nothing has changed in terms of the power consumption of the lamp.

Details on the new EU energy label 2021

Documentation (.pdf)

Information flyer (german)
Pure-Z signature
Weight 0,05 kg
Dimensions 5 × 5 × 9 cm
Scope of delivery

LED illuminant

Light output

4 watt (equivalent to a 38 watts light bulb)

Energy class

F (formerly energy class A++)

Brand

TECHNICAL DETAILS LED BULB PURE-Z-NEO, 4 WATTS
Colour matt white
Width 45 mm
Height incl. thread 85 mm
Operating voltage 230 VAC / 50 Hz
Energy efficiency F
Features almost flicker-free – pulsating light / pulsation < 1%
Type Globe / E14
Light exit angle 360° (all-round light, like a light bulb)
Colour temperature 2700 K (Kelvin), warm white
Power 4 watts
Light flux 400 lm (Lumen)
RA value 97 (CRI / Ra)
Lifetime up to 15.000 hours
Switching cycles up to 20.000
Start time < 1,0 s
Important Information not dimmableATTENTION: Not suitable for dimming
Field of application Can be used in all luminaires with E14 lampholder. Please note the dimensions of the lamp.
Warranty The guarantee is with proper treatment with the usual 2 years (§434 BGB + §446 BGB)

Pay attention to healthy light when buying lamps!
Healthy light from a building biology point of view, is a light source modelled on the sun

  • without flickering, as close as possible to 0 Hz (Hertz)
  • a light spectrum/colour spectrum that is as close to nature as possible, without the predominantly much too high proportion of blue light in an LED, for example. This serves to protect the macula (prophylaxis against premature macular degeneration).
  • Day-adapted colour temperature, i.e. full spectrum during the day and warm light in the evening.

Further information on the effect of light colour on people (german): CLICK HERE

6 watt LED spot Pure-Z NEO| bright as 40 watts, 480 lumens | CRI 97 | flicker-free | warm white | GU10

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4 Watt LED Filament Pure-Z NEO | Bright as 38 watts, 400 lumens | CRI 97 | flicker-free | warm white | E14 4 Watt LED Filament Pure-Z NEO | Bright as 38 watts, 400 lumens | CRI 97 | flicker-free | warm white | E14
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4 Watt LED Filament Pure-Z NEO | Bright as 38 watts, 400 lumens | CRI 97 | flicker-free | warm white | E14
4 Watt LED Filament Pure-Z NEO | Bright as 38 watts, 400 lumens | CRI 97 | flicker-free | warm white | E14

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