How many lines are there in the red light of the hotel fire sprinkler?

Fire sprinklers don't turn on red lights. Fire sprinkler: a sprinkler that starts automatically within a predetermined temperature range under the action of heat, or is started by a control device according to a fire signal, and sprays water according to the designed sprinkler shape and flow.

Hotels (also known as hotels, hotels, inns, guest houses, business trips, inns, hotels in China, and hotels in Malaysia and Singapore) are basically defined as business organizations that provide safe and comfortable spaces for users to have a short rest or sleep.

Generally speaking, it is a place for guests to stay and eat. Specifically, a hotel is an organization that provides services to its guests through the sale of rooms, restaurants and comprehensive service facilities, taking its buildings as evidence, so as to obtain economic benefits. The hotel mainly provides accommodation services, living services and facilities (bedtime services), catering, games, entertainment, shopping, business centers, banquets and conferences for tourists.

With the increasingly fierce competition in the hotel industry, mergers, acquisitions, integration and capital operation among large hotel enterprises are becoming more and more frequent, and domestic excellent hotel enterprises pay more and more attention to the research of the industry market, especially the in-depth study of the development environment of enterprises and the changes of customer demand trends. Because of this, a large number of excellent domestic hotel brands have risen rapidly and gradually become the best in the hotel industry.

The basic equipment of a hotel room includes bed, wardrobe, coffee table, telephone, TV and alarm clock. There is also a refrigerator with all kinds of drinks, wine and snacks. All these things need to be charged and paid at checkout. The room is also equipped with an electric kettle, cups and coffee, tea bags, milk, sugar and so on for guests to use.

Except for very cheap hotels, rooms usually have separate bathrooms with toilets, bathtubs and showers. More advanced hotels also have internet access, which may require an extra charge. The infrastructure of the hotel determines the reception capacity and conditions of the hotel, and the standard and quantity standard of the hotel facilities determine the grade of the hotel.