Net distance of 3.8 meters (projection lamp to screen cloth) ordinary projector can maximum how many inches 16:9 screen?

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Star projection lamp 50

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There is a projection lamp, thrown to the ground,

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How do I adjust the shape of projection lamp led? I want round

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Which scene is suitable for advertising projection lamp?

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What's the market for advertising projection lights in China?

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Can you tell me how to judge the quality of LED projector?

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What is the relationship between the power of projection lamp and luminous flux and luminous efficiency?

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The most famous manufacturer of projection lamps

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The projector, reggae RD-805, the projection light is LED's..

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Shandong Ji'nan Quancheng Square nearby, where has the star projecting lamp, 200

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How to identify projection light bulb true and false?

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Where can I find the projection lamp and LOGO lamp?.

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Is the price of projection light expensive?

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I bought an ad projector, but I don't know how to focus it more clearly Solving!

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What are the problems that should be noticed in installing the projection lamp wiring?

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Lamp, lamp, projection lamp, projection lamp is what is the difference

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What bulbs do you use for star projection lights? 5

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What is the angular speed of the projection light of LED?

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DIY star projection lamp is divided into you!

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Is there any kind of projection night light or star projection lamp in Shengzhou?

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Can projection lights connect to computers like projectors? What's the difference between projectors and projectors?.

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Which led projection lamp is better? Ask for an introduction

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Why is the projector still bright after the Harvard H6 sports car locks?

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How does the LED projector change the type of projection lamp that is visible on the ground?

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