Why do you need to touch and disassemble the lamps when choosing lamps? How to think about whether the various internal and external factors of the lamp fit the space? What important information about lamps and lanterns should be recorded? Comprehensive analysis and summary: Which lamp is the most suitable?
Touch
Why is it necessary to touch it when choosing a lamp? Because some features of lamps are the same as other products, if the workmanship is fine and the hand feels comfortable, under normal circumstances, the quality of the product is basically preferred. Therefore, sometimes you can feel the approximate quality of the lamp by touching it.

Disassemble
Through the disassembly and interpretation of the lamps, understand the installation and maintenance of the lamps, and compare which one is more conducive to the future management and maintenance of the space.

think  
Consider the different characteristics of lamps and compare whether they are suitable for the functional requirements of the space.

Use time and operating costs
Choose suitable lamps according to the use time and operating costs of the lamps.
Because the electricity cost saved by LED is about 85% of that of incandescent lamps, there is a longer need to turn on the lights, such as shopping malls, hotels, offices and other spaces. Use energy-saving lamps {zh0}. For the needs of shorter lighting time, such as bedrooms, kitchens and other spaces, choose according to the cost performance and personal preferences.
Below we can understand the relationship between the length of lighting use time and the operating cost calculated by the "Lighting Basic Lecture Teaching Material" ((Society of Illumination Society)), and we can understand why the use time and operating cost should be considered when choosing a lamp.

Life and maintenance
Considering the factors of difficulty and ease of maintenance, choose lamps and light sources with long and short lifespan.
For example: in a relatively short space, it is easy to replace the light source and maintain it, so more consideration should be given to the quality and cost-effectiveness of the lamp. If it is in a higher space, or even some aerial work trucks are dispatched for installation and maintenance, then more consideration should be given to the life and quality of the lamps.

Whether dimmable
Determine whether the space needs dimmable luminaires.

Materials and lamps
It is not good to choose lamps without studying the relationship between light and materials, because the same material, different lamps have completely different effects.
For example: the same cracked fermented semi-transparent glass (due to the transparent and reflective properties of the glass), the light from a single 1-watt LED linear lamp will appear to be partially bright. The light coming out of the fluorescent lamp (T5) gives a soft, uniform gradation.


Space height and lamps
From the illumination direction of the light source, lamps can be divided into down-illuminated and up-illuminated. Inside the room, the up-illuminated light is generally softer, while the down-illuminated light appears bright and direct. Therefore, when choosing a lamp, in addition to personal preference, the height of the ceiling and the space used should also be considered, so as not to create a sense of oppression on the space.

record
Record the different information of the lamps to facilitate comparison, contact and ordering.
Record the model of the selected luminaire,