![]() ![]() Whereas standard CFLs have delayed start times of 30 seconds or more, CCFLs are instant-on, taking little to no time to reach full brightness. While nothing about these cathodes is actually “cold,” 200 degrees Fahrenheit is considerably cooler than the 900-degree temp of the hot cathode. ![]() ![]() These cathodes resemble small metal thimbles that reach temperatures of 200 degrees Fahrenheit. Instead, CCFLs use cathodes that do not require filaments to heat up. On the other hand, the cathodes in CCFLs are not heated by a filament. This reactive process that standard CFLs go through to produce light is why they usually take at least 30 seconds to reach full brightness. Heating the cathodes in standard CFLs causes them to release electrons that react to the mercury in the glass tube to create ultraviolet (UV) radiation, eventually producing visible light. In standard CFLs, the cathodes are constructed of a thin wire tungsten filament that is heated to temperatures reaching at or above 900 degrees Fahrenheit when the lamp is turned on. The most common type of fluorescent bulb is the “hot cathode,” or what most people know as a standard CFL. Cold Cathodesįirst things first: although CFL and CCFL bulbs both use a ballast and cathodes to produce light, the temperature, type, and durability of the cathodes vary. This post will give you a rundown of the differences between CFL and CCFL bulbs while helping you decide which type is best for your specific lighting needs. But if I were to ask you what a cold cathode, or CCFL, fluorescent lamp is, would you be as confident in your answer? Although CFL and CCFL bulbs may have a similar look, they do have their differences, with advantages and drawbacks to each one. If they don’t know what it is by name, they certainly know it by its twisty shape resembling the top of a soft-serve ice cream cone. Shop here and c hoose the energy-efficient, long-lasting shape which best meet your unique lighting needs.By now, almost everyone knows what a compact fluorescent, or CFL, lamp is. On such systems, small amounts of electricity continuously enter the bulbs, even when turned off, diminishing the life of a Cold Cathode or CFL. And finally, Cold Cathode and CFLs do not work well if used with timers, motion detectors, or photo sensors are used. ![]() Cold Cathodes tend to cost more than CFL for comparable uses. Compare that to the range of a traditional CFL – Upwards past 150 watts comparable incandescent and over 2850 initial lumens. Occasionally, you might see one brigher, up to 60 or 75 watts.) Initial lumens range from 100 to 300. What are the disadvantages of Cold Cathode Fluorescent Light Bulbs? Cold Cathodes are restricted in light output, reaching only up to 40 watts comparable incandescent. The extended life reduces the maintenance cost and hassle of replacing the lamps. That is over 15,000 hours longer than most CFLs. And, Cold Cathodes last for approximately 25,000 hours of use. They are available in all common shapes, including a-lamps, flame tips, torpedo, G20 globes, G25 globes, G30 globes, R20 floodlights, R30 floodlights, and flat pars.ĭimmable down to 5% of total light output, Cold Cathodes provide more flexibility than CFLs. What are the advantages of Cold Cathode Fluorescent Light Bulbs? Cold Cathodes are ideal for use in theaters, amusement parks, marquees, flashing signs, chandeliers, decorative applications, sanctuaries, down lighting and track lights. Cold cathodes use more robust solid metal stubs which max out at 200 degrees Fahrenheit – hence the relatively “cold” cathode. In traditional CFLs, the cathodes incorporate thin tungsten wires which can reach upwards to 900 degrees Fahrenheit. The current then reacts with mercury and phosphors to generate ultraviolet light. So what is a Cold Cathode Fluorescent Light Bulb? CCFL, like their cousins Compact Fluorescent Lamps (CFL), use small, integrated ballasts to regulate electric current into a glass tube. Cold Cathode Fluorescent Lamps (CCFL), for instance, are especially useful where dimming, rapid on/off (for signs), or long lamp life is required. Tags: CCFL, CFL, cold cathode light bulbs, compact fluorescent light bulbsĪ light bulb is a light bulb is a light bulb – right? Wrong! There are certain types of light bulbs (or lamps as they are known in the lighting industry) which meet specific needs. What is a Cold Cathode Light Bulb? DecemPosted by bowmanlamps in Cold Cathode. ![]()
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