The Osram Sylvania EGR 750W 120V G22 Halogen Lamp Bulb – 54662-3
A unit of electrical power. Lamps are rated in watts to indicate the rate at which they consume energy. This OSRAM 54662 EGR Bulb is rated at 750 watts.
A measure of “electrical pressure” between two points. The higher the voltage, the more current will be pushed through a resistor connected across the points. The volt specification of an incandescent lamp is the electrical “pressure” required to drive it at its designed point. The “voltage” of a ballast (e.g. 277 V) refers to the line voltage it must be connected to. This OSRAM 54662 EGR Bulb is rated at 120 volts.
The base is the end of the lamp that fits into the receptacle connected to the electrical supply. There are many types of bases used in lamps, screw bases being the most common for incandescent and HID lamps, while bipin bases are common for linear fluorescent lamps. This OSRAM 54662 EGR Bulb has a base type of G22 (Medium BiPost).
The bulb type refers to the shape and class of the bulb. This OSRAM 54662 EGR Bulb has a base type of T-7.
This is the manufacturer provided rating for the average expected life of a lamp. For most lamp types, rated lamp life is the length of time of a statistically large sample between first use and the point when 50% of the lamps have failed. Note, this is not a manufacturer guarantee of life, but an estimate based on typical average testing. It is possible to define a “useful life” of a lamp based on practical considerations involving lumen depreciation and color shift. This OSRAM 54662 EGR Bulb has an rated average life of 200 hours.
A measure indicating the degree of “yellowness” or “blueness” of a white light source. Measured in kelvins, Color Temperature represents the temperature an incandescent object (like a filament) must reach to mimic the color of the light emitting from the lamp. Yellowish-white (“warm”) sources, like incandescent lamps, have lower color temperatures in the 2700K-3000K range; white and bluish-white (“cool”) sources, such as cool white (4100K) and natural daylight (6000K), have higher color temperatures. The higher the color temperature the whiter, or bluer, the light will be. The lower the color temperature the more yellow the light will be. This OSRAM 54662 EGR Bulb has a color temperature of 3200 K.
A measure of the luminous flux or quantity of light emitted by a source. For example, a dinner candle provides about 12 lumens. A 60-watt Soft White incandescent lamp provides about 840 lumens. This OSRAM 54662 EGR Bulb emits 20000 lumens.
An international system used to rate a lamp’s ability to render object colors. The higher the CRI (based upon a 0-100 scale) the richer and more true colors generally appear. CRI ratings of various lamps may be compared, but a numerical comparison is only valid if the lamps are close in color temperature. CRI differences among lamps are not usually significant (visible to the eye) unless the difference is more than 3-5 points. This OSRAM 54662 EGR Bulb is rated at 100 CRI color rendering index.
Filaments are designated by a letter combination in which C is a coiled wire filament, and CC is a coiled wire that is itself wound into a larger coil. Numbers represent the type of filament-support arrangement. This OSRAM 54662 EGR Bulb has a C-13D filament.
Mercury and High Pressure Sodium lamps may be operated in any burn position and will still maintain their rated performance specifications. Metal Halide and Low Pressure Sodium lamps, however, are optimized for performance in specific burn positions, or may be restricted to certain burn positions for safety reasons. This OSRAM 54662 EGR Bulb has an operating position of s90.
The bulb coating of the bulb. Typical values include clear, frost, and colored. This OSRAM 54662 EGR Bulb has a Clear bulb finish.
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