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Extra Bright Laser Pointer
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This 635nm laser pointer doubles as an ideal light source for basic ray optics and a useful presentation tool. The pointer's bright beam results from a shorter wavelength than the more usual 675nm while keeping the power output in the same 3-5mW range (Class IIIA U.S. CDRH). Due to the greatly increased sensitivity of the eye to the shorter wavelength light, the beam appears much brighter than a comparable 680nm beam. No bigger than a fountain pen and weighing only a few ounces, the pointer is easy to use - just point the laser in the desired direction and press the button. Beam width is approximately 7mm at 10m. The durable metal housing protects the instrument in the lab. Operates on two AAA batteries (included). Storage case supplied. Also available in a class pack of six pointers.
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