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Nowadays,large portable speaker are very common in the market. Not long ago, Meizu also released a small Bluetooth speaker. So why are large portable speakers so popular?

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Don't worry, in order to cope with these situations, bluetooth wireless headphones have emerged, of course, the invention of bluetooth wireless headphones must be attributed to the development of science and technology and the infinite wisdom of human beings.

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How to select mini portable speaker

We always want a clean voice with no other noise.However, when a mini portable speaker makes sound, it will produce noise, which comes from the resonance of the box body, the reflection inside the box body, the distortion of the mini portable speaker when it makes sound,the reverberation produced by the environment and so on.
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Do you know the buying skills of folding Table Lamp?

  • Author:Hedy
  • Release Date:2021-06-25
Generally, the color of the bedside folding Table Lamp should be warm or neutral, such as goose yellow, orange, milky white, etc.

1. Matters needing attention for bedside china folding Table Lamp supplier

The light is dim. The shape is exaggerated and the tones are strong.

The light of the bedside folding Table Lamp should be soft, not to reduce the brightness, because the dim light will cause depression, and for people who have the habit of reading before going to bed, it will damage their eyesight. Too bright light will irritate people's eyes and make people unable to sleep peacefully, but if the light is too dark, it will easily affect people's mood before going to bed. Therefore, the light of the bedside folding Table Lamp should be moderate while ensuring softness. This is also conducive to people's relaxation, which not only meets the needs of reading, but also creates a good environment before going to bed.

The bedside lighting is not only convenient for spending time before going to bed, but also for getting up at night. When people wake up in the middle of the night, they are often very sensitive to light. The dim light during the day will make people feel that there is enough light at night. Therefore, the shape of the bedside folding Table Lamp should be comfortable, smooth, and concise, and the color should be light and elegant. ,mild. Don't choose folding Table Lamps with exaggerated and peculiar shapes, and the colors should not be too strong and bright.

2. Principles for selecting bedside folding Table Lamps

The choice of bedside folding Table Lamp is generally based on the size of the room, the placement of the furniture, the overall decoration style and personal needs to determine the type of lamp. folding Table Lamps and wall lamps are the first choice for bedside folding Table Lamps in most families. The size and number of folding Table Lamps can be selected according to the size, style, texture, or personal preference of the bedside table. One lamp can be placed alone or two lamps can be placed symmetrically. Wall lamps need to be selected according to the size of the bed. Generally, a large bed should be installed on the wall on both sides of the bed, and a double-headed wall lamp should be installed in the middle of the bed. If you want to read easily, you can also choose a wall lamp with a telescopic handle and an adjusfolding Table Lamp holder.

In addition to folding Table Lamps and wall lamps that can be used as bedside folding Table Lamps, floor lamps and chandeliers can also be used as bedside folding Table Lamps. Although the floor lamp is mainly a more colorful decoration in the living room and has various shapes, it is not inferior to putting it in the bedroom. The floor lamp by the bedside is generally the first choice with a simple shape and a slim bracket. This style is the most space-saving. Even if there is a bedside table, it will not affect your need to open and pull the drawer. And if you just want to create an atmosphere, it’s okay to put on a floor lamp that looks like a lotus flower for decoration. In addition, a low-hanging chandelier can be installed on the ceiling above the bed and double as a bedside folding Table Lamp.

folding led light

The light of the bedside folding Table Lamp pays attention to softness. Therefore, when choosing the style of the lamp, it is necessary to pay attention to whether the material of the lampshade can soften the light. For example, lampshades made of frosted glass, parchment paper, PVC materials, silk cloth, etc., whose translucent texture can bring out a warm atmosphere of half-darkness and mottled light and shadow in the bedroom, which makes people feel peaceful and clear inside.

When buying a folding Table Lamp, you can bring a small top with you and spin the top under the light. If there is no visual illusion of inversion, it means that the lamp does not flicker.

1. There is no ultraviolet light and infrared light in the spectral composition.

2. The color temperature of light should be close to nature

3.The light is non-stroboscopic flash

Light source selection:

The light sources of bedside folding Table Lamps generally fall into three categories: incandescent lamps, tungsten halogen lamps and fluorescent lamps. The three types of light sources have their own advantages and disadvantages. Different people may like the light color and brightness of different light sources, and they should be suitable for each person. In order to project most of the light onto the desktop, the light source of the bedside folding Table Lamp is usually installed horizontally or downward. 

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When the bedside folding Table Lamp is in the normal working position, there are three main optical performance requirements:  
(1) Light-shielding: When a person is in a normal sitting posture, the eyes should be horizontal, and the inner wall of the lampshade and the light source should not be seen;  
(2) Desktop illumination requirements: the working area illuminated by the folding Table Lamp should be ≥250lx, and the minimum illumination should be ≥120lx;  
(3) Illumination uniformity requirements: It should be ensured that the illuminance is relatively uniform in the work area illuminated by the folding Table Lamp, and no particularly bright or dark spots can be produced. Only by ensuring these three basic optical performance requirements can the eye fatigue be relieved and the eye can be weighed. It deserves to be a writing folding Table Lamp. 

When purchasing a writing folding Table Lamp, in addition to checking its optical performance, you should also check whether other performances are qualified. One, one pull, two adjustments, three shakes, four touches. "Pull" means to unplug the power cord from the socket and pull the power cord out of the lamp cavity to see if the power cord is firmly connected. The power cord cannot fall off from the lamp cavity. "Adjustment" refers to adjusting the various working positions of the folding Table Lamp. When adjusting, no sound can be made, and the working position should be able to be easily and reliably locked after adjustment. "Shaking" refers to adjusting the folding Table Lamp to the most unfavorable working position, and then gently shaking the surface on which the folding Table Lamp is placed, to see whether the folding Table Lamp is easy to tip over, and the folding Table Lamp is not stable and easy to tip over. "Touch" refers to whether the lampshade and other heat-generating parts that are easy to touch during use are hot after the folding Table Lamp has been lit for a period of time (2 hours), so as to prevent accidental burns when using it in the future.

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