How to choose classroom lights blackboard lights
Classroom lights, blackboard lights, etc., all need to be driven by electricity, so classroom lighting must choose products produced by regular manufacturers. Choice of classroom lights and blackboard lights:
First, look at the light source The light source is one of the most important factors that determine the quality of the lighting effect. At present, the light sources on the market mainly include incandescent bulbs, fluorescent tubes and LEDs. Among them, incandescent light bulbs are cheap but have a short lifespan (about 1000 hours), and there are potential safety hazards in use; fluorescent light bulbs have high efficiency but limited lifespan (about 100,000 hours) and poor color rendering, and are generally used for decoration; LEDs have higher light efficiency And environmental protection and energy saving (the service life can reach more than 50,000 hours), it is the most ideal light source at present.
2. Look at the color rendering index CRI refers to the ratio of the imaging ability of an object on the retina after being irradiated by light with the actual light. The higher the value, the closer the object is to the natural color. When purchasing, you should pay attention to whether the product is marked with the explicit index value of its product?
3. Look at the power Power is an important index parameter that affects the illuminance, and it is also an important factor related to the power consumption of the lamps. Generally speaking, below 40w is low power, 60w~120w is medium power, 100w~200w is high power, and above 220w is ultra-high power.
4. Look at the protection level. When purchasing, you should pay attention to the dust-proof, moisture-proof and waterproof performance of the product?
5. Look at the installation method There are two types of magnetic ballasts on the market: magnetic ring type and iron shell type: magnetic ring ballast has the advantages of small size and light weight; iron shell type is characterized by good heat dissipation performance. damage.
6. Look at the power supply voltage Generally, 220v AC mains can drive lamps of about 40 watts.
7. Precautions for purchase
1. Make a reasonable choice according to the size of your room and the overall layout
2. Determine which type of lamps to choose according to the indoor lighting conditions and overall style
3. Pay attention to the position of the light switch and control device
4. Check the appearance for damage
5. Check whether the wire meets the requirements
6. After power on and test the brightness, check whether the brightness is uniform
7. Read the product manual carefully
8. Try to go to large shopping malls or supermarkets to buy products of well-known brands
9. How to use and maintain correctly
1. Before use, check whether the parts are loose or fall off.
2. When using, do not touch the surface of the lamp with your hands to avoid burns
3. Do not scrub the lampshade with a damp cloth
4. Do not use the lamp for a long time at an excessively high temperature
5. Do not let water get on the appliance
6. If a fault is found, it should be replaced in time
7. Do not disassemble and adjust the lamps at will
8. Do not use in a humid environment
9. Do not splash corrosive liquids on the lamp
10. Check the line regularly
Benwei Lighting is an LED Tube, LED flood light, LED Panel Light, LED High Bay, LED manufacturer with 12 years of experience. If you want to purchase a high-quality LED flood light or have a more in-depth understanding of the application of LED flood lights, please contact send us inquiry, our web: 
https://www.benweilight.com/.
