2. Movable lamps are lamps that can be moved from one place to another after being connected to the power supply during normal operation. Generally, table lamps on the desktop and floor lamps on the floor belong to this kind of lamps. It is the most flexible lamp type. The height of the large floor lamp is 1520~1850 mm, the diameter of the lampshade is 400~500 mm, and the incandescent light bulb of 100 watts is used;

The total height of the small floor lamp is 1080~1400 mm or 1380~1520 mm, the diameter of the lampshade is 250~450 mm, and the incandescent bulb of 60 watts or 75 watts and 100 watts is used; the height of the medium floor lamp is 1400~1700 mm. The total height of the large table lamp is 500-700 mm, and the diameter of the lampshade is 350-450 mm. When using incandescent lamps, 60-watt or 75-watt, 100-watt bulbs are generally used;

The total height of the small table lamp is 250~400 mm, and the diameter of the lampshade is 200~350 mm. When using incandescent lamps, a 25-watt or 40-watt bulb is generally used; the total height of the medium-sized table lamp is 400~550 mm.

3. Embedded lamps. The manufacturer specifies luminaires that are fully or partially embedded in the mounting surface. Refers to the recessive lamps embedded in the ceiling, the lamp mouth is connected to the ceiling, and it is usually a direct light type with downward volleying. This type of lamp is rarely used in ordinary residential buildings. It is used more in rooms with air conditioning and ceilings. However, because the downlight has a dark feeling, it is often used in conjunction with other lamps.