5-1/8" long x 1" wide at base
Available in 360o or 180o versions
Image above shows the type of light
each version gives off.
Ordered from brightest (on left) to least bright (on right):
green, yellow, white, blue, orange, red.
Infrared Krill Lamp
With 2 AA batteries
the infra red Krill lamp will last for 50 hours with a viewing angle of
360*, a positive signature of over 2000 ft and, is compatible with military
NVG systems with no visable light signature. This lamp is comparable to
the non-visable 8 or 3 hour IR chemical lightsticks.
Relative Brightness of Krill Lamps
The table above displays the relative brightness of each Krill
lamp style with the brightness lamp (Extreme 180 green) indexed to 100.
When comparing the Extreme 180 models, the green (100) is nearly twice as
bright as the blue (52).
When comparing green models, the Extreme 180 (100) is nearly twice as bright
at the Standard 180 (53).
The Extreme 180 green (100) is tens times as bright as the Standard 180 red
Standard vs Extreme
The Standard and Extreme Krills are identical except that
the Extremes have a voltage doubler. This roughly double the
brightness while halving the battery life.
If using the Krills as a light source (versus as a marker), chose
the Extremes as they are singificantly brighter.
If using the Krills as a marker, you may prefer the Standards as they
are readily visible in the dark and the battery life is significantly
Extremes are almost twice as brighter as Standards.
for the green 360s:
(62 - 32) / 32 = 94% brighter
180 vs 360
The 180s use half the lighting element of the 360s and so
the 180s cast light in one direction (like a very wide-beam flashlight)
while the 360s cast light in all directions (like a lamp). The total
light output of the 180s and the 360s is the same, but the light from
the 180s is concentrated in one direction. Because the same amount
of energy is used to light a smaller surface area on the 180s, the 180s'
surface is brighter than the 360s' .
If the Krill will generally be hand-held, the 180s are the better
choice as the light will not shine back into your eyes and a brighter
light can be shown in your path..
If the Krill will generally be hung or set in the middle of a room or work
area or used as a marker, the 360s are the better choice.
180s are about 60% brighter than 360s.
for the green Extremes:
(100-62) / 62 = 61% brighter
The general advice is to choose green as it is brightest.
The color is diffuse so objects take on a green tinge, but do not
take on a harsh green appearance.
If you are concerned about accurately identifying the color of objects
(eg, when reading maps), chose the white Krills.
Chose another color if you need that color as a marker or you strongly
prefer that color.
The greens are:
15% brighter than yellow
30% brighter than white
90% brighter than blue
170% brighter than orange
400% brighter than red
For example, for 180 Extreme green versus blue:
(100-52) / 52 = 92% brighter
Extreme 180 KrillTM
Both photos (above and below) were shot in a dark room
with green KrillTM held 6" above book.
History: The electroluminescence (el) technology used
in the KrillTM lamp was developed as a cost-effective
replacement for chemical lights used by the military as markers (the Navy
SEALs tested the prototypes of the versions now available). The
KrillTM lamp was quickly adopted by emergency service
personnel for their durability and long-term cost-effectiveness over both
chemical lights and flashlights. Introduced to the backpacking community
as a night-vision compatible light source and as a safer alternative to candle
Without batteries: 1 oz or 28 gm (same weight
as 5 quarters)
With 2 AA batteries: 2.6 oz or 75 gm (same
weight as 14 quarters)
Night vision compatible. The light produced is soft and complements
human night vision by stimulating the rods in your eyes. In contrast,
the light from a flashlight stimulates the cones in your eye resulting in
"night blindness" when you look away from the flashlight's illuminated area
or turn it off.
Non-offensive to animal life. The light from a
KrillTM Lamp is much less likely to drive off wildlife.
There are some anecdotal reports that animals are actually attracted
to the light.