无码中文a在线播放国产三级_成 人A影片 免费观看_亚洲成人精品一区二区_99久久国产综合精品麻豆天美_日韩中文字幕AⅤ网站_國產亞洲無毒不卡_无码国产综合aⅴ在线_88av免费观看视频_精品无码每日更新_在线你懂的亚洲专区

Company News

How to use the desk lamp properly and safely?

How to use the desk lamp properly and safely?

Lamp used for study and work, is a kind of lighting tools to collect the light; the lamp can not only the light from the lighting, also to the entire room with warm and elegant, with excellent decorative function. So, are you using the right way?

What characteristic does Huazeng Science and technology protect eye desk lamp to have?

What characteristic does Huazeng Science and technology protect eye desk lamp to have?

Answer: Huazeng technology eye lamp using eye DC fluorescent technology and LED unique new light source design, can effectively protect your eyesight, Huazeng technology LED eye lamp no stroboscopic, no radiation, no glare, energy saving and environmental protection, is the best companion for your study and work.

Introduction of light source principle of LED desk lamp

Introduction of light source principle of LED desk lamp

The main parameters of the LED desk light source are VF, IF, and others related to color / color temperature / wavelength / brightness / luminous angle / efficiency / power consumption, etc.. The LED table lamp is a PN junction diode that conducts current only by applying enough forward voltage

How to choose the bedroom bedside lamp?

How to choose the bedroom bedside lamp?

The lamp is a very important part in our daily life, it can not only lighting also play a decorative effect, many kinds of lamps, today, let the lamp ten brand Huazeng technology, take us to understand and appreciate the bedroom bedside lamp lamp selection

The difference between eye lamp and ordinary desk lamp

The difference between eye lamp and ordinary desk lamp

Ordinary lamp in the 50 Hz alternating current state of normal work, every second will blink about 100 times, so high flicker frequency, light on the human eye is not visible. Therefore, under the desk lamp for a long time, plus do not pay attention to eye hygiene, extremely prone to myopia.

© Copyright huazeng.com   Shenzhen huazeng Tech.,ltd     Guangdong ICP for 12345678