Marl 651-111-76

Current rating is the maximum current that a fuse will carry for an indefinite period without too much deterioration of the fuse element.

the amount of voltage needed to get current to flow across a diode.

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.

The different types of lamps include:Incandescent Lamps,Tungsten Halogen Lamps,Fluorescent Lamps,Compact Fluorescent Lamps,Mercury Vapour Lamps,Metal Halide Lamps,High Pressure Sodium Vapour Lamps,Low Pressure Sodium Vapour Lamps.

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.