4 Foot Fluorescent Black Light Bulbs

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4 Foot Fluorescent Black Light Bulbs – One-hundred-and-thirty ages ago, Thomas Edison finished the first successful sustained test of the incandescent light bulb. With some incremental improvements on the way, Edison’s fundamental technology has lit the world ever since. This is about to change. We are on the cusp of a semiconductor-based lighting revolution that will finally replace Edison’s bulbs using a far more energy-efficient lighting alternative. Solid state LED lighting will gradually replace virtually all of the hundreds of billions of incandescent and fluorescent lights being used around the world these days. In reality, as a step along this route, President Obama last June unveiled new, more rigorous lighting criteria that will support the phasing out of incandescent bulbs (which already are prohibited in parts of Europe).

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To understand exactly how revolutionary LED light bulbs are and why they’re still pricey, it is instructive to look at how they’re fabricated and also to compare this to the manufacture of incandescent light bulbs. This report explores how incandescent light bulbs are created and then contrasts that process with a description of the typical production process for LED light bulbs. So, let’s start by taking a look at just how traditional incandescent light bulbs are manufactured. You’ll realize this really is a classic example of an automated industrial process elegant in over a century of experience.


While individual incandescent light bulb forms vary in size and wattage, so all of them have the three primary components: the filament, the bulb, and the base. The filament is made from tungsten. The linking or lead-in cables are generally made from nickel-iron wire. This wire is dipped to a borax way to generate the wire more adherent to glass. The bulb itself is made from glass and contains a mixture of gases, generally argon and nitrogen, which raise the life span of the filament. Air is pumped from the bulb and replaced using all the gases. A standardized base retains the entire assembly in place. The base is referred to as the ” Edison screw base” Aluminum can be used on the exterior and glass used to insulate the inside of the base.

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Originally produced by hand, light bulb manufacturing is currently almost completely automated. |} First, the filament is fabricated using a process known as drawing, where tungsten is mixed with a binder material and pulled through a die (a shaped orifice) to a nice wire. Then, the wire is wound around a metal bar called a mandrel in order to mold it to its appropriate coiled shape, and then it is heated in a process known as annealing, softening the wire and makes its construction more uniform. The mandrel is then dissolved in acid. Secondly, the coiled filament is connected to the lead-in cables. The lead-in cables have hooks at their ends that are either pressed on the end of the filament or, in bigger bulbs, spot-welded.

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Third, the glass bulbs or casings are made using a ribbon system. Once heating in a furnace, then a continuous ribbon of glass moves along a conveyor belt. Precisely aligned air nozzles blow the glass through holes at the conveyor belt to molds, making the casings. A ribbon machine going at high speed can produce more than 50,000 bulbs each hour. After the casings are blown, they are cooled and then cut from the ribbon system. Then, the inside of the bulb is coated with silica to eliminate the glare caused by a glowing, discovered filament. The wattage and label are then stamped on the exterior top of each shell.