Five-line Light Source Optical Experiment Box, Parallel Light Source Physical Optics Science Education

Specification: Product name: five-line light source Power: 2* AA batteries (not included) wavelength: 650NM Power: 0.5MW Light source spacing: 10MM Size: 95x85x40MM

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Five-line Light Source Optical Experiment Box, Parallel Light Source Physical Optics Science Education—
$120.00