Photoluminescent pigment (glow-in-the dark powder) for printing ink and artwork It absorbs various lights and then glow in the dark or dark place and can be used repeatedly. When this occurs, they emi ...
Far-infrared Bandpass Filter Neutral wavelength during 2.0μm-25μm.We adopt silicon, germanium, sapphire ,magnesium fluoride ，Calcium fluoride to be coating.And the peak value is greater than 75%.
flash necklace have magnetic clasp.
Digital light meter, light level meter, lux meter