Shortwave and Longwave Ultraviolet Lamp
This economical shortwave ultraviolet fluorescent lamp now also includes a longwave ultraviolet LED lamp so you can experiment with both shortwave and longwave ultraviolet light. Shortwave ultraviolet light is just the right wavelength to vibrantly illuminate many fluorescent minerals that you collect. Some minerals fluoresce, or glow, under shortwave ultraviolet light, others under longwave ultraviolet light, and others fluoresce differently under both!
This one economical, portable provides both shortwave and longwave light, making it a good investment for a rock collector. This lamp produces fluorescent shortwave light at 4 watts and 254nm wavelength and it produces LED longwave light at 375nm wavelength. You provide four AA batteries. Ages 12 & up.
Note: UV light is the part of sun light that causes sunburns. Never look directly at UV bulbs. Wear UV filtering goggles or glasses if using this low-level ultraviolet light source for extended periods.
Quick Science Investigation: Are you wondering if your safety goggles, sunglasses, or regular glasses will help protect your eyes against low-level ultraviolet light like our battery-operated UV lights? Many of these types of glasses have lenses made out of polycarbonate, a natural low-level UV light filter. Test your goggles or glasses by first shining a UV (shortwave or longwave) light on a mineral or other object that fluoresces brightly. Then put the UV lamp inside the goggles or glasses and shine it on the same fluorescing object through the lens. What happens? The object will no longer fluoresce where the UV light has been filtered by polycarbonate lenses!
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- Sunday, September 22, 2013Great UV lampReviewed By: Alex
Works really well. Allows to see the awesome colors of fluorescent minerals. Shortwave light takes some time to come on when using 1.2 volt rechargeable batteries. Regular alkalines work well.
- Monday, August 26, 2013Shortwave UV is Impressive for the PriceReviewed By: Bill DiPuccio
The Longwave component of this UV lamp consists of a single LED bulb. The output is not impressive but it does the job if you are looking at fluorescent minerals in a dimly lit room. HST has a brighter version for $11.66 (Item# OP-BLUVLED).
Considering the price, the shortwave UV light is indeed impressive. At close range (1-3 inches) it stands up against my 13 watt UV lamp which cost $150. The difference, of course, is for demonstration purposes the 13 watt lamp will illuminate a larger area at a greater distance. Otherwise, this portable lamp is more than adequate.
- Thursday, August 15, 2013OK for at the officeReviewed By: Doug
I was hoping to use this lamp in the field, but the power is too low for sunny days (even under a shade). Works very well in a dark room or lab. Like that it has both short and long UV. Do not like the switch, it moves too easily and can turn itself on/off in a bag.
- Tuesday, January 01, 2013Excellent LightReviewed By: Bill Prescott
I purchased this uv light to see Tagging on Stamps. It works very well and I would recommend to other Stamp Collectors. It is reasonably priced, light weight and easy to check Stamps when making private purchases and you need to make sure Tagging is there.
- Saturday, March 03, 2012low powerReviewed By: Ronald
Light does work but you have to be very close, 1" or less to mineral to see any flourescence in a dark room. I don't have any prior experience with short wave uv lights to know for sure but this would seem underpowered.
Results will depend on the mineral sample. Often you can hold the light much farther away and still see a glow, but some minerals have less bright fluorescence.Read More Reviews