Human eyes develop and grow under natural light. For people, the best light source is scattered natural light. The goal of all "eye protection lights" is to make the lights emit light as close as possible to the characteristics of natural light. In life, the light emitted by most artificial light sources is not stable but flickers rapidly. The common incandescent lamp strobe is generally 50 Hz, that is, the light will flicker 50 times per second. With every flicker, our pupils will shrink and expand once, which will virtually increase the burden of using our eyes, and our eyes will feel tired. The main factors to consider when buying a lamp: 1. Illumination. At least above 300Lux, the greater the luminous flux, the greater the illuminance in the same distance test. 2. Stroboscopic , that is, the frequency of light flashing. If the light flashes badly, you can take a photo or video with the camera of your phone, and you will find that there will be flashes of light on your ca

Since 2009, the sale of light bulbs has been banned. The main reason is the low energy efficiency and thus the lack of environmental protection. Energy-saving lamps and LEDs have successfully established themselves as substitutes. These lamps differ not only in terms of technology but also in terms of service life and energy efficiency. Energy-saving lamp technology The lamp body of the energy-saving lamp is composed of glass or ceramic tubes. The glass bulb contains a gas mixture and two electrodes, between which a gas discharge occurs. Once the current is turned on, the electrode will flow from the cathode to the anode. In the gas mixture, the electrode hits mercury atoms and the energy is released in the form of ultraviolet rays. Tubes are usually coated with fluorescent materials, once the ultraviolet rays hit its surface, they will convert the ultraviolet rays into visible, pleasant white light. LED light technology LED (Light Emitting Diode) technology is not based on a gas disch

The fact that the light bulb is out of date spread to everyone at the same time. In 2009, it gradually withdrew from circulation. Since 2018, halogen lamps have disappeared from the range of light sources. Especially LED lights have become the light source of choice in our homes. We clarify which technologies you can invest in with confidence. Bulb At the end of the 19th century, Thomas Edison invented a simple and safe light source. An electric bulb is a powerful light source with an output power of 25 to 60 watts. The light color of the bulb is warm and pleasant, with a color temperature of 2,600 to 3,000 Kelvin. However, less than 150 years later, the euphoria disappeared, because the average life of the bulb was only 1,000 hours. Then it eventually becomes hazardous waste. In addition, to say the least, their energy balance is a disaster. So it goes to the end of the light bulb of course. The light bulb works Electricity flows into the base through the cable. Here, the current is c

Degrees of protection and protection levels make it safer to handle electrical equipment if you can understand them correctly and use the equipment accordingly. We clarified the label jungle. Here you can read the basic knowledge of these two terms, taking the lamp as an example, which protection levels and IP protection levels are required for installation in different locations. Why is there a protection level? For lights, electric drills, or cable reels, whenever electricity is involved, safety is the top priority. For electrical installations, multiple DIN and VDE standards are defined. Because electricity can neither be seen nor touched, but electric shocks can be fatal. Therefore, it is not only do-it-yourself and builders who rely on well-defined standards, reasonable protective measures, and last but not least high-quality electrical equipment to prevent sudden electric shocks. This equipment can be used as emergency brakes to shock. Electrical equipment is constructed accordin

Light can affect sleep, we must first start with melatonin. The pineal gland of the human brain secretes a hormone called melatonin, and this hormone will guide us to fall asleep and improve the quality of sleep. Therefore, melatonin is an important factor affecting our sleep. The secretion of melatonin has a circadian rhythm. After night falls, the light stimulation weakens, and the enzyme activity of the pineal gland to synthesize melatonin increases. The secretion level of melatonin in the body also increases accordingly, reaching a peak at 3 a.m. The level of melatonin at night directly affects the quality of sleep. With age, the pineal gland shrinks until it becomes calcified, causing the rhythm of the biological clock to weaken or disappear, especially after the age of 35, the body's melatonin secretion decreases significantly. How does light affect melatonin secretion? There is a very small cell in our retina called non-imaging visual cells (ipRGC). As the name suggests, thi

From the dressing room to the playroom to the youth room: the demand for children's rooms is growing as rapidly as its residents. What does this mean for light? In retrospect, there are only a few rooms that are as emotionally important as children's rooms: your first room, a place of retreat where you can have many memories. Over the years, only a few rooms have changed so frequently and so strongly: among babies and toddlers, parents still use this room. Later, this dressing room became a bedroom and then a game room, where people at school study and the teenager room is a place for gathering with friends and various leisure activities. The room develops with the children and acquires new tasks and functions. But how should you consider this when planning suitable lighting for a children's room? Children's rooms even need light "When the child is a child, the taste changes faster. Things that are still great today will become stupid tomorrow." This is anoth