An electric projector is an installation consisting of surface and support structure which is electrically operated and display image on the screen or wall using lens system. The screen can be permanently installed on the wall or painted on wall. In theatre it is permanently installed and with the technique of projector we see the movie. These can be used in many places like at home, offices, colleges, institutions, conference rooms or any non committed viewing room. Uniformly white or green screens are used to avoid any bruising to the illustration. Flat screen are commonly used but you can also use a curvy screen. Commonly used display resolutions for a portable projector include SVGA (800×600 pixels), XGA (1024×768 pixels), 720p (1280×720 pixels), and 1080p (1920×1080 pixels).

There are different electric projector technologies:

1.       CRT projector using cathode ray tubes is oldest and is not liked by people because of its bulky cabinet.

2.       LCD projector using LCD light gates. It is affordable requires much less place and is reasonably good for home and business.

3.       DLP projector it does not face any problem, they display each primary colour simultaneously.

4.       The latest technology is LED that is light emitting diodes, is better than DLP projector as there is an array of LED.

An electric projector screen has should have following features; the image should be clear and should not stretch and break, the effort in opening and closing of screen should not be much. It should not be difficult to install.

Once you have brightened up your hallway with a hall runner, you need to care for it regularly. Stylish hall runners look great when they are sparkling clean. But they get dirty very easily as not you’re your guests, but your family members, especially the children and pets pass over it daily. You will have to clean your stylish hall runners regularly to avoid wear and tear on them. There are many ways to get them cleaned. You can contact carpet cleaners for the job. They use a mousse, which effectively deals with stains and also keeps the texture of the runner safe. They then dry the stylish hall runners before vacuuming them thoroughly. The carpet cleaners clean the stylish hallway runners by putting warm water over them and then sucking the dirt up with water with the help of an excellent suction machine. This leaves the runner almost dry at the end. However, if you want to clean the stylish hallway runners yourself, you can buy a carpet washer. Though they are expensive machines but are very effective in their jobs. They are helpful in the homes where there is a lot of traffic in the halls. You can also wash the dirty areas of your stylish hallway runners by hand, but it can be a difficult job.