info on T8 lights
- Thread starter aaron
- Start date
T12 are regular fluros. fixtures, T8 have been around there are a few T* bulbs availabel on the market for aquarium use. T5 bulbs are new to the US, but have been around in Canada and other countries. by the way Fluroscent bulbs has a T# to identify the diameter of the bulbs 1T = 1/8 diameter. Hope that helps.
Peter
Peter
The 32-watt T8 lamp is becoming the standard for new construction and as a retrofit replacement for 40-watt T12 fluorescent lamps. All major lamp manufacturers market T8 lamps, and they are readily available in a variety of straight and U-shaped configurations through standard distribution channels. Also available from some manufacturers are T10 fluorescent lamps, a high-wattage, high-lumen alternative to T12 lamps, and most recently, European T5 technology requiring new metric lumenaires. T5 lighting is currently the most energy efficient system available for indoor lighting.
frank
frank
T8 lamps require an electronic ballast specifically designed to operate lamps at a lower current than T12 lamps. Whenever T12 lamps are replaced with T8 lamps, the ballast must also be replaced. Install an electronic ballast for optimum light quality and efficiency; electronic ballasts don?t flicker or hum, and they use less power! T12, T10, and T8 lamps can all use the medium bi-pin base, which allows T8, and T10 lamps to fit into the same luminaires as T12 lamps of the same length. T5 lamps have a different base, and are shorter than T8s, so new lumenaires are needed.
T8 lamps used with electronic ballasts will typically use about 32% less energy than the same lumenaires with T12 and magnetic ballasts. T5 lamps and electronic ballasts will use about 45% less energy than the T12 setup. Additional savings are possible if a lighting re-design indicates the use of reflectors and delamping, or fewer lumenaires. ?ECO? T8s also use little or no mercury inside the lamp, saving on disposal and environmental costs. Longer lamp life and less lumen depreciation means lower maintenance costs. Worker productivity increases with light quality improvements.
frank
frank
T8 and T5 lamps achieve both improved color rendering and high efficacy by employing rare-earth phosphors. The correlated color temperature (CCT) and color rendering index (CRI) of the lamps is controlled by varying the selection of phosphors. Like T12 lamps, T8 lamps are available in a variety of color temperatures, including warm (3000 K), neutral (3500 K), cool (4100 K), and very cool (5000 K). ?Full Spectrum? lamps are typically 5000K or higher, and emit 10 to 20% of their output in the form of UV light. The CRI of T8 and T5 lamps can be specified from 70 to as high as the mid-90?s. Every lamp manufacturer has a product coding system denoting CRI, which may require a catalog to decipher. For great lighting quality, specify a CRI of at least 80.
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