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数学12博官网

紫外线和白色LED照亮了4x玻璃12博官网

Item Number : 93979P1

每次6.95美元
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数学12博官网

好吧,好的,玻璃,因为数字和方程会阻止你're trying to see. At 7-11/16" overall, the 4-1/2" sturdy black plastic handle and frame holds an approx. 2" x 2" square lens that magnifies to 4X. With (5) white LEDs and (1) UV LED, 396-400nm wavelength, on the business side, you'll see that tiny print, or easily check out money, stamps, insects, etc. You'll need (4) ag-10 button batteries for power.

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