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Each PL series lamp bears a label that indicates its designed working spectrum, the model number, and serial number for ready identification. The model letter scheme for the lamps models indicate their designed wavelength(s):
302nm Medium Wave (UV-B) = M 254nm Short Wave (UV-C) = S or G
The PL series includes both the 'Compact' 4 watt lamps, and the more powerful 'Handheld' 6 watt lamps. These lamps incorporate either a UV tube or black light bulb (BLB) emitting one wavelength of UV either 254nm, 302nm, or 365nm. The Compact model UVGL-25 and the Handheld UVGL-58 provide two wavelengths, but each incorporates a separate 254nm and a 365nm tube.
Left: UVP PL series compact lamp, model UVG-11 (44,879 bytes). The Compact UVGL-55 and the Handheld UVGL-15 are each a multi wavelength Split-tube arrangement incorporating one ultraviolet lamp that emits two wavelengths of ultraviolet light 254nm or 365nm. The UV tube for these Split-Tube lamps is made so that while the bulb is powered on then one half fluoresces to provide 254nm output, while the other half of the tube too will fluoresce to provide 365nm illumination. The lamp filter panel is partitioned into two panes with a blocking metal cover that the user can position over either side of the filter element, in this way it blocks either source to allow only one wavelength to pass. The blocking panel slides back and forth or can be removed and snapped back into palce. To replace the bulb of a Split Tube model lamp one need order only the one since these lamps do not rely on a separate tube for each wavelength.
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The Handheld lamps are readily distinguished from the Compact models, the Handheld lamp housings incorporate a comfortable extended grip handle while the Compact models have the simpler rectangular profile. The Compact series lamps are: UVG-11, UVGL-15, UVL-21, UVGL-25, UVL-23, and UVL-23R. While those of the Handheld series include the UVG-54, UVGL-55, UVL-56, UVM-57, and UVGL-58 lamps. Left: PL series handheld split-tube lamp, model UVGL-55 (138,254 bytes). The lamp will incorporate either 4 watt, or 6 watt. The differences of wattage are indicated in the labeling of the lamp housings, otherwise the Compact models are identical to each other in terms of dimensions, as are the Handheld models. Most PL series lamps are AC powered, available to operate from one of either 115 volt or 220 volt AC. These are provided with an attached eight (8) foot-long AC power cord. However, the AC models may be used in the field when powered from a portable AC power generator or when connected to a DC to AC power converter powered by a battery pack or solar array. The Handheld UVL-23R is a 12 volt DC powered lamp, it is provided with a power cord with a male cigarette lighter style plug so it can operate from portable 12 volt battery packs or from an AC to 12 volt DC regulated power supply. The UV source incorporates a dark colored filter panel, this and the tube can be replaced by the user with no special tools or skills. The lamps are constructed of a molded lightweight plastic chassis.
* To replace the bulb of a Split Tube model lamp one need order only the one since these lamps do not rely on a separate tube for each wavelength.
1. Lamp Stand: to facilitate the use of these lamps in a desktop configuration optional metal fixtures are available. These Lamp Stands (J-124 for the Compact, J-129 for Handheld lamps) are made of a bent sheet metal base with a rolled arm welded in place. The arm of the stand incorporates a 'C' shaped grip so the user can simply slide the lamp into place. The lamp stands are lightweight yet more than rigid to support the lamps. The metal is covered with a durable black crinkle finish paint.
Above: UVP Lamp Stands models J-124 at left supporting a Compact series lamp, and J-129 at right with Handheld series lamp
The Chromato-Vue® Mini UV Cabinet is made to accommodate one or two of most EL Series 8 watt lamps: UVL-18, UVM-18, UVS-18, UVL-28, UVM-28, UVS-28, UVLMS-38, UVLM-28, or UVLS-28. So you can mix and match wavelengths, or dedicate all four possible 8 watt tubes to increase the intensity of the illumination at one wavelength. Note the 3UV-xx EL lamps are not compatible with the Chromato-Vue® C-65. Right: the C-10 Mini UV Cabinet accepts any one the PL Series 4 watt or 6 watt lamps. It is shown at right with the UVGL-58 Handheld lamp (22,919 bytes). Note you can order the UVGL-58 lamp including a C-10 series cabinet, this set is the Model C-15G Mini UV Cabinet. 3. Replacement lamp tubes and fllter (refer to table above).
Above: UVP UVL-56 UV Lamps at Company Seven, front and rear views (89,040 bytes).
Company Seven can provide customers with information about lamp longevity upon request. This is usually expressed in terms of continuous hours of operation. While it is usually a simple matter to replace a UV lamp bulb, and we provide instructions with each lamp about how to do so, longevity is of a concern when the lamp is to be used installed into some hard to access location where it may be inconvenient to replace the bulb. So whenever time or labor costs to change a bulb are factors in the decision making process then we recommend:
Note that some types of UV sources and filters can lose some of their output capacity over time (as mentioned above).
Company Seven hosts numerous articles and users guides at our UVP Notes & Interesting Articles page and in our Library including:
As amazing as it can be to explore the ultraviolet spectrum, this is not child’s play! For a good overview of working in the UV and explanations of proper precautions consult Ultraviolet Spectrum Primer, the illustrated article by Company Seven explaining the ultraviolet (UV) spectrum as it applies to photographing or imaging objects in the UV and about observing fluorescence, phosphorescence, and tenebrescence. The article explains the different portions UV spectrum including UV-A (long wave), UV-B (mid) and UV-C (short wave). This also goes into a discussion of imaging gear including lenses, films and filters. Then refer to our article Ultraviolet Personal Safety Gear.
Ordering UVP Products
Company Seven stocks some of the more popular UVP lamp and cabinet products, and we accept orders for their other products by numerous means. You can also bring your UVP item to Company Seven for repair, or contact us to obtain user-serviceable items (bulbs, grids, etc.). The ways by which you may order products or parts are outlined at
Company Seven has not become convinced that on-line ordering is always beneficial for the customer, particularly when making a more complicated choice. While on-line ordering certainly is convenient and time effective for the merchant since they do not have to spend time with the customer, the customer is not always making the best choices when buying solely after reading what may be "propaganda" on line. The best ways to make the better choices are to either visit our showroom, or telephone 301-953-2000. This way you can obtain prompt and competent concise assistance which will address your particular needs and concerns.
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Contents Copyright 1994-2015 Company Seven and UVP - All Rights Reserved |
Company Seven offers the complete broad selection of ultraviolet (UV) sources of made by UVP including the PL Series described on this page. The PL Series are compact and affordably priced 4 or 6 watt UV lamps, each providing either one wavelength of UV or a choice of two wavelengths of UV.
2. UVP 
WARNING Infrared and ultraviolet wavelengths are invisible to the human eye yet these electromagnetic waves bear energy and other information. So any structure that absorbs the light can be damaged by this energy; note how sunlight exposure tans the skin while prolonged exposure fades or breaks down materials. The photons of shorter wavelength carry greater energy therefore, these have the greater potential for causing biological damage. These wavelengths can penetrate the eye or skin cells and can produce heating and energy related biological changes that will modify or destroy cellular DNA; this is among the reasons why some UV light sources are used for germicidal (sterilizing) applications.