LEDs have a greater energy efficiency than other UV light sources and can be developed to emit radiation at various wavelengths. LEDs that emit ultraviolet light are currently more expensive than standard LEDs, but hold promise for applications where fluorescent tube-type lamps are inconvenient or unavailable. They have been found to be as effective as mercury lamps in germicidal effectiveness. They emit a broad spectrum of light in the UV, visible, and infrared ranges. They often have very high wattages and high ultraviolet outputs. UV pulsed xenon lamps emit pulses of ultraviolet light lasting a few milliseconds. Because of the UVB component, they tend to produce more damage to enzymes of microbes and inhibit photoreactivation. These are a type of high-intensity discharge (HID) lamp. Medium pressure ultraviolet light bulbs emit broadband UVB/UVC wavelengths. There are also more manufacturers making these bulbs, and more variations of the bulbs in terms of lengths, wattages, bases, and bulb shapes. They offer the lowest cost, good energy efficiency, and long life of 9,000-17,000 hours. UVB and UVA bulbs are more similar to fluorescent tubes, using glass with various phosphors to control the wavelengths emitted. For UVC, they are made of quartz with a peak transmission of 253.7nm. These resemble fluorescent tubes or compact fluorescent bulbs. The most common type of UV light bulb is the low pressure mercury lamp. Common Types of UV Light Bulb Technology Low Pressure Mercury And with the increased awareness of the danger of airborne pathogens, the demand for UV-C for air purification has skyrocketed. Municipalities have long used UV-C for water purification. UV-C germicidal bulbs and fixtures are most often used in medical settings to sanitize surfaces and clean rooms. Most UV-C light from the sun is filtered out before it even hits the earth. UV-C light can be extremely harmful to human and animal skin and eyes, and is used for disinfection of air and surfaces, as well as water purification. It can also be used for some germicidal applications, although it does not have nearly the effective power of UV-C lights. Specialty UV-B bulbs are used in medical settings for treatment of jaundice, skin disorders, and other conditions. It is generally not dangerous to humans, except in high dosage amounts. UV-A light provides very little disinfection power, although it can have some germicidal effectiveness over very long periods of time. Many flying insects are attracted to ultraviolet light. UV-A light bulbs are often found in insect traps and bug zappers for commercial and residential applications. Although they are used in many blacklight fixtures in stage/studio applications, blacklights can be used for fraud detection of currency, validation of identification, and even identifying organic waste to track the path of bedbugs. Commonly referred to as blacklights, these UV bulbs are much more than a novelty. The UV-A part of the ultraviolet spectrum is used in a wide variety of applications. There are a large number of applications utilizing UV light. However, not all UV bulbs or fixtures are interchangeable. Our STER-L-RAY ® brand of Germicidal Ultraviolet Lamps can be used as equivalent replacement lamps for over 250 equipment brands and 5,000 models of ultraviolet equipment besides Atlantic Ultraviolet’s Air and Water Purifiers.Ĭan’t find lamp you are looking for? Each of our UV Application Specialists has access to an extensive cross referencing interface.All of the bulbs and fixtures in this category emit light in the ultraviolet part of the spectrum. It can be used as an equivalent replacement lamp for other brands. This lamp is an equivalent replacement lamp for the following: Brandĭisclaimer: This is an Atlantic Ultraviolet Corporation ® STER-L-RAY ® brand lamp. Note: Color of Lamp Base has no bearing on operation or use, and should not be considered when determining lamp needed.
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