Shielded lights - why should you use a shielded lamp buy?
Shielded lamps provide effective protection against electromagnetic radiation in the 50 Hz range.
One of the main sources for exposure to electric and magnetic fields generated by 50 Hz current and low-frequency VLF (KHz) is lighting, which is used both at work and at home. This issue poses a serious global health problem is often underestimated.
A lamp emits electrosmog
An unshielded lamp (protection class 2) with an unshielded connection cable can generate an electrical alternating field (50 Hz) of 100 to 160 V/m, while the recommended limit in building biology is 10 V/m. In contrast, a shielded lamp (protection class 1) produces corresponding design only an electrical alternating field of 0.4 to 0.6 V/m.
Even when a lamp is turned off, it generates an electric field that radiates through our body. This field can cause an induced voltage in our cells, which can be harmful if long-term exposure. One way to reduce the radiation is to plug the lamp plug in the right way into the socket. This reduces the spread of the electric field when the lamp is switched off.
However, when the lamp is switched on, the electric field spreads in the vicinity of other conductive materials. For example, if the power cable touches the parquet floor or the desk, the electric field can be routed, resulting in harmful exposure when we come into contact with these surfaces.
Shielded lamps are therefore an excellent solution to protect against electromagnetic 50-Hz radiation.
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What plug types are used in Germany?
In Germany, Austria and Switzerland there are four different plug types that are compatible with different sockets: the Schuko plug, the Euro plug, the contour plug and the hybrid plug. These plugs differ in terms of contact pins, shape, protective conductor and earthing variants.
The Schuko plug is often used in devices of protection class 2, such as vacuum cleaners. The name “Schuko” stands for protective contact, as the grounding plates ensure that failure-related impacts are safely deflected. The grounding plates are mounted sideways, and the contact pins have a diameter of 4.8 mm.
The degree of electrosmog exposure by a lamp also depends on the direction in which it is connected.
Single and double pole switches
For light switches, there are single-pole and double-pole variants. Most lamp switches are single-pole, which means they only interrupt one of the two conductors. Two-pole switches, on the other hand, interrupt both wires at the same time, so that the orientation of the plug is irrelevant in this case. The switches used in our lamps are either bipole or fully shielded, so the insertion direction does not matter.
Connecting in the „right direction“
There are two ways to plug a two-pin plug into an electrical outlet. A plug with three pins has only one correct insertion direction. However, a plug with two pins, which is often used in lamps and electronic devices, can be plugged in in two positions by turning it 180 degrees. The orientation of the plug can be decisive
When the plug of a lamp is plugged in upside down, the single-pole switch interrupts the circuit on the return line instead of interrupting it at the beginning. This means that the lamp, even when switched off, is still under voltage and emits electrosmog.
If the plug is plugged in correctly, the circuit on the switch is interrupted so that the lamp is no longer under voltage when switched off.
What happens if the plug is inserted incorrectly? If the wrong polarity goes unnoticed, it can lead to a fire, as damaged cables or components can create sparks that trigger a fire. A polarised socket also increases the risk of electric shock. Therefore, it is important to check the correct orientation of the plug and mark if necessary.
Why is a shielded lamp so effective?
A shielded lamp is designed to retain the electric field via the power cable.
This cable consists of three wires (phase, neutral conductor and earth) surrounded by a grounded metal foil. This film deflects the electric field of 50 Hz and prevents electrostatic charges from accumulating on the surface of the lamp. Grounding also contributes to safety by minimizing the risk of electric shocks.
In addition, the three wires of the power cable (phase, neutral conductor and earth) are twisted 15 times per meter to neutralize the 50 Hz magnetic field. Depending on the model, each lamp is either equipped with a two-pole switch that interrupts both the phase and the neutral conductor, or with a special shielded switch to prevent the spread of the electric field. All the metal parts of the lamp are grounded to insulate the electromagnetic waves, similar to a Faraday cage, before they are dissipated to Earth.
Our shielded luminaires and lamps have greatly reduced electrical alternating fields, which significantly reduce the electrosmog in the immediate vicinity. The light source is surrounded by an umbrella basket, which prevents the release of the alternating electric field.In addition, ensure that
Closed metal housing and the stainless steel screen spiral in the luminaires we offer an effective shielding.
Which light bulb should you choose?
It is important to have not only an attractive and well shielded lamp, but also a light bulb that protects your eyes. There are special bio-LED lamps on the market, especially from the brand Biolicht, designed to protect your eyes. These bulbs provide more comfort by reducing the amount of blue light, minimizing flickering (flickering) and providing improved color reproduction – three important factors to consider when choosing a good bulb.
Blue light: A danger with LED bulbs?
The light spectrum of LED bulbs contains a high proportion of blue light, which can be harmful to our eyes.
Blue light is defined as visible light in the wavelength range of 380 to 500 nm.
Laboratory studies have shown that excessive exposure to blue light can damage the light-sensitive cells in the human retina. These changes are similar to those caused by macular degeneration, which in some cases can lead to a loss of vision. Therefore we recommend bulbs with reduced blue light content.
Bulbs that reduce the amount of blue light are crucial to prevent premature eye fatigue and possible problems with macular degeneration.