|DooDoo Voodoo Blacklights
We used to offer two types of blacklights. We have long sold a plug-in type, made by GE, that features an 18"
bulb and which we feel does a better job of showing organic
contamination than other brands do. We also used to sell a small,
handheld, cordless flashlight-type unit that used long-lasting LEDs and
also featured a regular flashlight function and a laser pointer function
(excellent for using to play with your cats). I bought and tried a
number of these types of corded and handheld units before deciding which
Four On The Floor should sell.
A customer asked how the two
types compare, so I fired each of them up, went to the darkest rooms in
our house and shot some photos that I think you'll find helpful.
The quality of the light put
out by the two units is different. Because the plug-in unit uses
an 18" bulb, the light it emits is very even, with no hotspots.
The cordless flashlight's light is brighter overall, but does exhibit
some hotspots, as you'll see in the photos below.
The plug-in unit's light is, I
think, a bit better at showing organic contamination, but you can
absolutely ascertain contamination under the handheld flashlight's
light, too. I could assess a room using either unit and feel
confident in my results.
I shot photos of a white,
folded-up towel I laid on some nice vinyl flooring. I also shot
photos of a spot where our rescued, special-needs dog had peed on the
carpet in our treadmill room. I had previously treated this area
with DooDoo Voodoo, so its fluorescence (glow under the blacklight) is
reduced from what it would be if the spot were fresh and untreated.
Note that when I turned on all
three cordless flashlights, which I had ganged together with rubber
bands, the total amount of light being emitted was too much, so I turned
two of them off. In the photo taken in the treadmill room, you'll
see rings of light on the floor and swear that I had all three
flashlights on, but I did not. What you see is from ONE of the
cordless, handheld units.
The rings of light can sort of
make it a wee bit trickier to assess your organic contamination, but by
moving the handheld unit around a bit, you can find the "sweet spot" in
which you can best see the contamination.
The cordless flashlights'
brightness could be a plus for those of you unable to get the room dark
enough to really check around for contamination. I'd say (and this
is a subjective opinion), that though its output is a bit dimmer, the GE
plug-in unit might do a wee bit better job of showing you the contrast
between the contaminated areas and the uncontaminated areas.
If you have electrical
outlets easily accessible and can devote a 25' extension cord to it, I
advise that you get the GE plug-in unit, as I trust and prefer the
wavelength of its emitted UV light. If you do not
have electrical outlets readily available, you cannot get the room(s)
totally dark or you prefer the convenience of the handheld unit, the
little handheld unit(s) might be useful to you.
None of the photos has been
retouched in any way, only resized and optimized for web viewing.
Check out the photos and form
your own opinion. Click on each photo to see the larger version.
three of our handheld, cordless blacklights that I
ganged together with rubber bands. Front view
plug-in blacklight with 18" bulb.
(Sorry, no larger photo available, so don't click on the
photo to the right.)
A photo of a
clean, white folded towel I laid on a vinyl floor.
This photo was taken under light emitted by the GE
plug-in 18" blacklight, held approximately 30" up off
A photo of
the same towel, but this photo was taken under light
emitted by THREE handheld, cordless blacklights, ganged
together with rubber bands, also held approximately 30"
up off the floor.
is of previously DooDoo Voodoo'd dog pee on a carpeted
floor. This photo was taken under light emitted by
the GE plug-in 18" blacklight.
A photo of
the same old dog pee, but taken under light emitted by a
SINGLE handheld, cordless blacklight. In real
life, the blacklight didn't wash out the pee spot as
much as this photo makes it look like it did. I
think the light was bright enough to make the camera
"stop down" (close) its iris a bit, as evidenced by the
difference in the darkness of the furniture and carpet
in this photo vs. in the previous photo.