1. What are the advantages and disadvantages of Solar lamps?

Advantages of Solar street lights

1. Energy -saving and environmental protection -Solar street lights use natural light to reduce the consumption of electrical energy; Solar street lights are polluted and radiated, which is in line with modern green environmental protection concepts.

2. Safe and durability Traditional lighting street lights can be transformed through electrical energy, which may cause hidden safety hazards due to construction quality, aging materials, and abnormal power supply.The Solar street lights do not use AC power, and the battery uses the battery to absorb solar energy and convert low -voltage DC into optical energy. There is no hidden safety hazard.At present, the production technology of most Solar battery components is sufficient to ensure that the performance will not decrease for more than 10 years. Solar battery components can generate electricity for 25 years or longer.

3. Low high -tech content and low maintenance costs -Solar street lights are controlled by intelligent controllers, which can be based on the natural brightness of the sky and the brightness required by people in various environments within 1 day.In remote areas far from town, the cost of maintaining or repairing conventional power generation, transmission, street lights and other equipment is high.Solar street lights only need cyclical inspection and little maintenance workload, and its maintenance costs are much less than conventional power generation systems.

4. Install component building blocks, independent power supply -flexible and convenient installation, so that users can choose and adjust the capacity of Solar street lights according to their needs.The Solar street lights Running away from the net have the autonomy and flexibility of power supply.

Disadvantages of Solar street lights

1. High cost -the initial investment in Solar street lights is large, and the total cost of a Solar street light is 3 or 4 times that of the same power conventional street lights.

2. Low energy conversion efficiency -The conversion efficiency of Solar photovoltaic batteries is about 15%to 19%. In theory, the conversion efficiency of silicon Solar cells can reach 25%, but after actual installation, the efficiency may be reduced due to the blocking of the surrounding buildings.Essence

3. Affected by geographical climatic conditions -due to the sun to obtain energy, the local geographical climate and weather conditions directly affect the use of street lighting.The rainy days will affect the lighting Lights, causing the illuminance or brightness to meet the requirements of the national standard, and even the Lights appear. Because the light is insufficient during the day, the light time at night is too short.

4. Lowlire and cost -effectiveness of components -the price of batteries and controllers is high, and the battery is not durable. It must be replaced regularly. The service life of the controller is generally only 3 years; the reliability is low.

5. The maintenance of Solar street lights is difficult. The quality of the heat island effect of the battery board cannot be controlled and detected. The life cycle is not guaranteed, and the control management cannot be uniformly performed.There may be different lighting situations; the range of light is narrow. The Solar street lights currently used by the China Municipal engineering Association are inspected and determined on the spot. The general illumination range is 6-7m.The needs of the main road.

2. What are the types of Solar lamps?

1. home lighting

Compared with ordinary LED lights, Solar lamps are built into lithium batteries or lead-acid batteries, which are connected to one or more Solar panels to charge it. Generally, the charging time is about 8 hours, and the use time is 8-24 hours.Generally with charging or remote control functions, the appearance is different according to user needs.

2. Signal light

The role of navigation, aviation and land Traffic signal lights is very important. Many local power grids cannot supply power, while Solar signal Lights can solve the problem of power supply. The light source is mainly based on small particles.Good economic and social benefits have been achieved.

3, lawn Lights

Solar lawn Lights, light source power 0, 1 ~ 1W, generally use small particles to light emitting diode (LED) as the main light source.The power of Solar panels is 0, 5 ~ 3W, and can use two batteries such as 1 and 2V nickel batteries.

4, Landscape light

Landscape lighting Solar lights are used in squares, parks, green spaces and other places. Various shapes of small -power LED dot light sources and wire light sources are used. There are also cold and cathode -shaped Lights to beautify the environment.Solar landscape lamps can achieve better landscape lighting effects without destroying green spaces.

5. Make a lamp

Lights used for night orientation instructions, house cards, intersections.The optical flux of the light source is not high, the system configuration requirements are low, and the amount of usage is large.The light source of the identified light can generally use a small -power LED light source or a cold cathode light.

6. street lights

Solar street lights are used in village roads and rural roads. They are one of the main applications of Solar photovoltaic lighting devices.The light source adopted has a small power high -voltage gas discharge (HID) light, fluorescent lamp, low -voltage sodium lamp, and high -power LED.Due to its overall power restrictions, there are not many cases applied to urban main roads.With the complementary with the municipal route, the application of Solar photovoltaic lighting street lights on the main road will increase.

7, insecticidal lamp

It is used in orchards, plantations, parks, lawn and other places.Generally, fluorescence Lights with specific spectrals, more advanced LED purple Lights, and radiating murderous insects through its specific spectrum lines.

8, flashlight

The use of LED as a light source can be used in the wild or emergency.

9, courtyard light

Solar courtyard Lights are used in urban roads, commercial and residential communities, parks, tourist scenic spots, squares and other lighting.You can also change the above -mentioned municipal lighting system to the Solar lighting system according to the needs of the user.

1. How much is a home Solar Lamp?

Solar lamps use clean solar energy as energy, and can transform solar energy into electric energy by themselves. There is no additional electricity fee, and it is relatively safe and stable, and the application is wide. home Solar lamps have gradually entered everyone's vision. Then home Solar energyHow much is the light?

home Solar lamps are generally integrated with lamps and batteries. Compared with ordinary lamps, Solar lamps are new high -tech products. The price is naturally more expensive., Model and other factors, the price is different. It is available from one or two hundred yuan to four or five hundred yuan. Generally, the 20W light source of ordinary households is sufficient. It uses 40W or 50W Solar panels, about 400 yuan.

Note: The above price source network is for reference only.

2. How to choose home -type Solar lamps

Solar lamps are energy -saving and environmentally friendly. Many families will choose to buy and install, especially in rural areas with good sunlight. It is cost -effective to buy a home Solar Lamp, but many friends do not know how to buy Solar lamps.Buy:

1. Choose according to the use, if it is used in the family, you can choose a film Solar Lamp; if you need to use it, it is also recommended to choose a dual -charging type of Solar Lamp.

2. Look at the quality of Solar lamps, mainly to see the size of Solar panels, the connection line of Solar panels and the lamp body, the size of the luminous surface and the number of lamps, the battery and capacity used, etc., which will directly affect the home solar energy.The quality and daily use of the lamp.

3. Look at the packaging of home Solar lamps. First of all, see if its production and production brand is a regular manufacturer, secondly to see the content of the product test report, etc. When buying, pay attention to ask if there are regular invoices as a purchase voucher.

4. Consider the cost -effective factors, choose a Solar Lamp with appropriate power according to the needs of family lighting, and consider the price factors. It is advisable to select a product with high cost.

1. What kind of cat litter is better for double layer of cat sand pots

cat sand pots can be divided into two types: single -layer and double -layer. The biggest difference between double layer of cat sand pots than single -layer cat sand pots is that there is one more layer of drawers under the double layer of cat sand pot. Cat sand, in general, the cat litter suitable for the double layer of cat litter is mainly the following:

1. crystal cat sand

crystal cat litter needs to be used with a double -layer of cat litter basin, the upper layer is placed in the crystal cat litter, and the lower layer is placed on the cat diaper pad or the wood chips cat litter to urinate.Because the crystal cat litter uses a single layer of cat sand pot, it may cause the urine to accumulate on the bottom of the pot, produce odor, breed bacteria, and cause cats to reject it.

2. Pine wood cat sand

Generally speaking, there are two types of pine Cat sands two types: condensed wood chip sand and collapsed wood chip sand. The former can be used with single or double -layer cat litter pots, but the disintegration of pine cat sand must be used with double layer of cat litter. Pot, otherwise it will be troublesome to clean up.

Generally speaking, all cat litter can be used in double layer of cat litter, but considering some cat litter, such as the puffed earth cat litter, tofu cat sand, etc. Using cat diaper pads, the lower layer design is basically not used to use any field, so you don't have to waste buying a double -layer of cat litter.

2. Do you have to use double layers with pine cat sand?

Pine wood cat sand is a cat litter made of recycled pine materials. It is more environmentally friendly. The shoveling officers who have used pine cats have known that pine wood cats can only be used with double layer of cat sand pots. Why is this?Can a single layer of cat sand pot be used with pine cat sand?

Generally, it is not recommended that a single layer of cat litter pot for pine cat litter. The main reason is that the pine wooden cat litter will become powder when encountering the urine of the cat, and then slowly fall down; if it is a double -layer of cat sand pot, The pine cat litter that absorbs urine will automatically fall to the lower layer below. When cleaning, pull out the lower layer of cat litter basin and pour the powder -shaped cat litter into the toilet, which is very convenient; but if it is a single layer of cat sand pot, In terms of, the pink accumulation of pine Cat sands is accumulated under the cat litter pot, which is more troublesome to clean up.

Therefore, the pine cat sand is generally used with a double -layer cat litter basin, the upper layer is relaxed, and the lower layer can be matched with some newspapers, urine pads, or other hygroscopic products.

How to grow Cucumber seeds

Cucumbers are a kind of vegetable that many people love. It can not only make delicious foods, but also have many beauty effects.Many friends with balconies in the balcony like to plant plants or vegetables on it, and the popular cucumbers are the first choice for everyone to grow vegetables on the balcony.So what are the technologies and precautions for balcony Cucumber planting?Let's understand below.

Balcony Cucumber planting technology and precautions

1The sowing time of the balcony Cucumber seeds is generally in early spring1-3Do it in the moon, of course in Xiaqiu6-8Month can also be sown.In spring, the seedlings are used after soaking the seedlings or plastic membranes to cover the live broadcast, and the sowing of summer and autumn can choose two methods: soaking in live broadcast or dry species.The method of using dry species live broadcast is general3-4The sky can emerge, and the germination time is faster.Wait until Cucumber cute1-2When the genuine leaves, transplantation can be performed.

2To plant cucumbers, choose a good container, can be Flower pots, wooden basins, professional cultivation boxes, foam plastic boxes, etc. The most important point is to drain and breathe.40It is advisable to be about centimeters.If you cultivate soil, it is best to choose fertile and loose and well -drained cultivation soil, which is more conducive to its growth.

3After the container is selected, the most important thing before planting is the soaking.First use55Lightwater in soak the seeds20In minutes, keep it in a constant temperature state, and it must be continuously stirred during the soaking process. After the temperature of the water drops to room temperature, continue to soak6-8Hour.After that, remove the seeds, wrap it in a wet gauze, and put it25-28Perform germination under the conditions of , and seeding can be performed until half of the seeds are gradually exposed.

4, Even the soaked seeds on the finely crushed cultivation soil, and then cover a layer of thick1A thin soil of about centimeters can be.After sowing, water permeability should be poured once to keep the heat and moisturize to relieve the seedlings.spring Cucumber seedlings should be controlled, and the soil should be kept moist during the growth period. The water should be controlled during the flowering period. As a result, the amount of water requires a lot of water. Generally, watering is required once every two to three days.

5To ensure that Cucumber grows better.There is sufficient bottom Fertilizer during planting, mainly rotten Organic fertilizer, and the results of the period should be combined with watering for fertilization.5-7Tiantian can be applied to Compound fertilizer.The absorption of Cucumber roots is weak and sensitive to high -concentration Fertilizers. It is advisable to apply thin Fertilizer for diligence.6-8Picked up1Second, harvest the first batch of melons, cultivate soil and Fertilizer1Secondly, pay attention to phosphate and Potassium fertilizer to avoid steep and long premature aging.

6, When the Cucumber rolls must appear, they should be used as a shelf.Put a bamboo pole on the outside of the seedlings, and one seedlings and one pole.Two rows on the upper end of the bamboo pole are tied together.When the melon can not grow upright, it should be tied in time.3~4Once the leaves are tied, the rope and the pole and the vine presented "8"The glyph can prevent the vines from rubbing or falling or falling. The tie can not be too tight. It is advisable to insert the index finger. Each tie the vine should be fixed at the same height at the top of the vine, which is easy to manage, and it is best to carry out in the afternoon.It is not easy to break the vines and leaves.

7After the first part of the Cucumber10It can be harvested around the sky.45Sky around, planted in Gengua sitting column contract30Around the sky, the harvest period is1-2A month.But pay attention during the process of planting Cucumber, keep20-28The growth temperature in , exceeded30If , it will grow poorly, but lower than10C will stop growing, so be sure to control the temperature.It should be covered with sunshade nets before emerging in the hot summer.

8When the Cucumber's main vine climb to the top of the shelf, you need to get topped in time, and it is mostly long -footed.30~35When the leaf is carried out, topping can promote the growth of melon.The topic should be determined according to the characteristics of the variety. Most of the varieties that are easy to turn back melon are topped one month before pulling seedlings. The output is low when the topping is too early.Tooling, scrolls, and old leaves, these processes are essential. Only by doing these can ensure that the Cucumber grows, blooms, and results. It can also prevent diseases and insect pests.

How long will Cucumber seeds germinate

The temperature required for sowing, germination time, demand for soil, appropriate temperature and other factors are basically the same.

Ambient temperature25Sowing at about C,5~7Outside of the sky,7~8Expand the leaf in the sky,12~14Let's start the real leaves,60Bloom around the sky.

Also, if you use it52Soak in warm water in10~12Speed the germination after the hour,3The sky can germinate, and then sow, so that the seeds can be saved.

The seeds are soaked, and the sterilized seeds should be cleaned with water and soaked the germination.Soak the seeds of Cucumber into water3-4In hour, after the seeds are absorbed and must be water, put it in25-30The germination in the environment, the commonly used methods are: electric bubble germination method and the thermostat box to germination method.

Commonly used seed disinfection methods are:

1Win soup disinfection method.

The specific method is to wet the seeds with cold water, and then use it5055The hot water is hot, the amount of hot water is the amount of seeds45Be more stirring the seeds and keep it1015After minutes, pick the seeds and put them in cold water to eliminate the seed heat.

2, Pharmacy disinfection method.

Commonly used potions are Forma, potassium permanganate, and bacterial spirit.The commonly used concentrations are100Double1000Double500Times.disinfection of the seeds should strictly grasp the concentration and time of planting the agent, such as50% Multi -bacterial Spirit500Divided solution, soaking seeds30minute.

1. Is the electric sofa loung chair easily broken?

The software sofa has the best period of use, usually seven or eight years.After that, the sponge latex will be aging and deformed, the leather will peel, the cloth surface will wear, the internal frame will be loose, etc. The service life of the brand sofa is for ten years.In addition, the functional frame of a regular function sofa must be tested by fatigue, which can generally be used for at least 20 years.Whether the electric sofa lounge chair is easy to be broken, it depends on the quality of the buying sofa. Secondly, it depends on daily use maintenance and usage. This is closely related to the service life of the electric sofa.

2. How to repair the electric sofa button in failure

What are the reasons for the failure of the electric sofa button

1. Inserting loosening will cause the electric sofa button to fail.

2. The connector of the electric push rod is loose, or the connector of the handle is loose, which will cause the electric sofa to fail.

Electric sofa button fails maintenance method

1. You can find the maintenance master to repair, because the maintenance of the electric sofa requires a certain technical content.

2. Check if the connector is loose first.