QRM84BYYRG02E
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30791252-QRM84BYYRG02E
LED Panel Mount Indicators 2VDC 8mm Red/Grn LED PIN
the angle at which a display can be viewed with acceptable visual performance.
In photometry, luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminosity function, a standardized model of the sensitivity of the human eye.
affect how much visible light reaches people's eyes, how well people see other colors and how well they see contrasts.
IP (or "Ingress Protection") ratings are defined in international standard EN 6529 (British BS EN 6529:1992, European IEC 659:1989). They are?used to define levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies?(tools, dirt etc) and moisture.