The lights in the rented room are flashing a little blue.

Smoke alarm lever is a kind of smoke alarm. The installation location depends on the space size and fire protection requirements. Occasionally flashing lights proves that it is working, so it is ok.

Applying GB/T 20 145 to evaluate the blue light hazard of light sources and lamps is the Chinese national standard implemented in 202 1, 1.

Electric light, that is, artificial lighting appliances with electricity as energy source, can convert electricity into light, which greatly promotes the progress of human civilization. Common types of electric lamps are incandescent lamp, fluorescent lamp and LED lamp.

Types and uses.

Lighting electric light sources are generally divided into incandescent lamps, gas discharge lamps and other electric light sources. In the green lighting project, various light sources can be selected according to specific conditions.

Incandescent lamp.

(incandescent lamp)

Ordinary incandescent lamps are commonly used incandescent bulbs.

Features: A light source widely used by people, which can emit warm and weak yellow light.

Is what most of us think of as a light bulb. It has the advantages of low price, good color rendering (Ra= 100), continuous dimming and simple structure. Therefore, tungsten filament bulbs also have different styles to match different lamps. However, tungsten filament bulbs have short life, low light efficiency, no power saving and low temperature, so don't be too close to paper, textiles or plastic products.

Uses: living room, living room, lobby, guest room, shop, restaurant, walkway, conference room, courtyard.

Uses: table lamp, ceiling lamp, wall lamp, bedside lamp, corridor lamp, etc.