To focus the light where they want and don't want to shine, like on the residents of the island.
Why do that when you can have all the bulbs shine in all directions for maximum brightness, and just employ a cheap simple technique like a curtain to limit the arc of coverage to where you want?Wouldn't the LEDs themselves be able to do that? Why have a light that shines in all directions and use a curtain to block it, when you can simply have a light that can shine in specific directions?
Yes, I agree that the western media is more hostile towards China than China to the west.
Nice pics...thanks!Some pictures of Yongxing Island in the Paracels.
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Yongxing Island dated Sept 16, 2016.
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The harbor on the NW side of Yongxing Island.
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North side of Yongxing Island.
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Yongxing Island, the NE side.
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A civilian plane is seen in front of the airport terminal.