The meaning of the 200-inch screen we usually refer to is: the projection screen with a diagonal length of 200 inches. Therefore, in the practical process of daily life, it is necessary to convert it into a more acceptable number of long and wide centimeters. Only in this way can we determine more accurately whether the placement place is large enough to be placed under this behemoth. Here is to say: 1 inch = 2.54 cm.
So how does the diagonal line of a 200-inch projection screen translate into length and width in centimeters? First of all, you have to determine what percentage of the 200-inch projection screen you want to purchase. The current mainstream projection screen ratio is divided into two categories: 16:9 and 4:3, and the corresponding 200-inch projection screen has different length and width. Here's how long the 200-inch projection screen will be in the two ratios.
Longitudinal width calculation method with 16:9 ratio:
Length = diagonal X 0.8716
Width = diagonal X 0.4903
200-inch screen size conversion:
Length = 200 X 0.8716 = 174.32 inches = 174.32 X 2.54 = 442.77 (cm)
Width = 200 X 0.4903 = 98.06 inches = 98.06 X 2.54 = 249.07 (cm)
Length and width calculation method at 4:3 ratio:
Length = Diagonal X 0.8
Width = Diagonal X 0.6
Example: 200-inch curtain length = 200 X 0.8 = 160 inches = 160X 2.54 = 406.4 (cm)
Width = 200 X 0.6 = 120 inches = 120 X 2.54 = 304.8 (cm)
After reading the above calculations, have you already had an intuitive feeling about the 200-inch projection screen? At a 16:9 ratio, the 200-inch projection screen size is 442.77 cm 249.07 cm; at a 4:3 ratio, the 200-inch projector screen size is 406.4 cm 304.8 cm. Finally, the author reminds: When actually buying a 200-inch projection screen, first measure the length and width of the projection screen you are planning to install, and then decide what percentage of the projection screen to buy.
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The heater on the shell for the outlet, the bottom of the air intake, power after the electric tube around the air is heated to rise from the outlet outflow, and the surrounding cold air from the inlet into the supplement. So repeated cycle, so that the indoor temperature can be improved. When the inlet and outlet are blocked or the ambient temperature is too high, the temperature control element will automatically cut off the electric tube power supply. This heater is used in the power of about 800 watts, but also by increasing the number of electric tube connected to adjust the power. The safety of the heater is high, running quiet, the disadvantage is to slow down the temperature.
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