PERSONAL/SIGNALING LIGHTS Specifications
Model Product No. Size Weight Material Waterproof Beam Angle Accessories Activation Visibility Flash Rate Lamp Battery Type Certification Limited Warranty Operational Life Operation
C-Strobe™ 3959 6.0x1.6in
(15.3x4.0cm)
2.6 oz
(74g)
ABS to 10 ft
(3.1m)
Omni-
Directional 360°
1083 Dated Lithium Batteries
PN 9433 C-Clip for Inflatable PFD
Manual up to
2 mi
(3.2 km)
60 ± 10/min nominal Xenon flash tube 2 "AA" alkaline (1yr replacement) or 1.5V lithium (5 yr replacement USCG 161.012/41/0, CE approved 1 yr More than 
8 hrs continuous @ -1° C (30°)
Twist "ON-OFF"
Firefly2® 3900.1 4.4x2.2x1.1in
(11x5.6x2.5cm)
4.0 oz
(113g)
Poly-
carbonate
to 200 ft
(61m)
Omni-
Directional 360°
A6-04-0087 Orange pouch with lanyard Manual up to
3 mi
(5 km)
60 ± 10/min nominal High Intensity Xenon strobe 2 "AA" alkaline (1yr replacement) or 1.5V lithium (5 yr replacement USCG 161.012/29/0, FAA (TSO-C85), CE approved 1 yr Minimum 
8 hrs
Switch "ON-OFF"
Firefly2® Waterbug 3996.1 4.4x2.2x1.1in
(11x5.6x2.5cm)
4.0 oz
(113g)
Poly-
carbonate
to 200 ft
(61m)
Omni-
Directional 360°
A6-04-0087 Orange pouch with lanyard Manual up to
3 mi
(5 km)
60 ± 10/min nominal High Intensity Xenon strobe 2 "AA" alkaline (1yr replacement) or 1.5V lithium (5 yr replacement  FAA (TSO-C85), CE approved 1 yr Minimum 
8 hrs
Lights when in water with switch "ON"
Firefly2® Doublefly 3999.1 4.4x2.2x1.1in
(11x5.6x2.5cm)
4.0 oz
(113g)
Poly-
carbonate
to 200 ft
(61m)
Omni-
Directional 360°
A6-04-0087 Orange pouch with lanyard Water & Manual up to
3 mi
(5 km)
60 ± 10/min nominal High Intensity Xenon strobe
/Incandescent
2 "AA" alkaline (1yr replacement) or 1.5V lithium (5 yr replacement CE approved 1 yr Strobe: minimum 8 hrs
Incandescent:
2 hrs continuous
Multi-function switch "ON-OFF-ON"
Hemilight™ HL8-9M 3765 2.9x1.6x1.5in
(7.5x4.1x3.8cm)
3.5 oz
(100g)
UV Stabilized composite carbonate polymer to 10 ft
(3.1m)
All directions of the upper hemisphere N/A Manual .75 cd minimum, visible up to 1 mile
(1.6 km)
N/A Incandescent, 1.5cd mean intensity, steady white light Lithium 5 yr life (not replaceable) SOLAS 74/83 IMO MSC 48(66) Res 689(17) LSA Code; tested to MSC 81 (70); USCG 161.112/44/0, CE approved; meets MED. 1 yr Exceeds 
8 hrs @ -1°C (30°F)
Switch "ON-OFF"
Hemilight™ HL8-9A 3766 2.9x1.6x1.5in
(7.5x4.1x3.8cm)
3.5 oz
(100g)
UV Stabilized composite  polymer to 10 ft
(3.1m)
All directions of the upper hemisphere N/A Water & Manual .75 cd minimum, visible up to 1 mile
(1.6 km)
N/A Incandescent, 1.5cd mean intensity, steady white light Lithium 5 yr life (not replaceable) SOLAS 74/83 IMO MSC 48(66) Res 689(17) LSA Code; tested to MSC 81 (70); USCG 161.112/44/0, CE approved; meets MED. 1 yr Exceeds 
8 hrs @ -1°C (30°F)
Lights when in water
C-Light™ 3355 5.6x1.3in
(14.3x3.2cm)
1.3 oz
(37g)
without batteries
ABS Waterproof and corrosion resistant case Lens simultaneously focuses a beam of light upward/ directional and a ring of light all around PN 9433 C-Clip for Inflatable PFD Manual up to
2 mi
(3.2 km)
N/A Incandescent 2 "AA" alkaline (1yr replacement) or 1.5V lithium (5 yr replacement USCG 161.012/36/0, CE approved. Patent No. 5237491 1 yr More than 8 hrs continuous @ -1°C (30°F) Twist "ON-OFF"
L8-7 3762-0180 1.8x1.6in
(4.6x4.1cm)
2.0 oz
(56g)
High impact styrene to 10 ft
(3.1m)
Lens simultaneously focuses a beam of light upward/ directional and a ring of light all around N/A Water over 1 mile
(1.6 km)
N/A Incandescent Lithium USCG 161.012/36/0 approved 1 yr Exceeds
8 hrs
Lights when
 in water 
L8-3 3720-0180 3.7x1.0x.42in
(9.4x2.6x1.0cm)
1.8 oz
(51g)
High impact styrene to 10 ft
(3.1m)
Lens simultaneously focuses a beam of light upward/ directional and a ring of light all around N/A Water & Manual over 1 mile
(1.6 km)
N/A Incandescent Cuprous iodide/
magnesium
USCG 161.012/36/0 approved 1 yr Exceeds
8 hrs
Lights when in water with tab pulled
RapidFire™ Light 3365.1 3.1x1.8x1.6in
(7.9x4.6x4.1cm)
2.3 oz
(65g)
UV Stabilized composite  polymer to 10 ft
(3.1m)
Lens simultaneously focuses a beam of light upward/ directional and a ring of light all around N/A Manual & Automatic over 1 mile
(1.6 km)
N/A Incandescent Lithium N/A 1 yr Approximately 8 hrs @ 
-20° C (-4°F)
Pull-pin; automatic on some vests

 

RapidFire™ Strobe 3961.1 3.1x1.8x1.6in
(7.9x4.6x4.1cm)
2.3 oz
(65g)
UV Stabilized composite  polymer to 10 ft
(3.1m)
Omni-
Directional 360°
N/A Manual & Automatic over 1 mile
(1.6 km)
60 flashes /min ±10 for 4 hrs; rate slows to 20 flashes/min during last 4 hrs Incandescent Lithium N/A 1 yr Approximately 8 hrs @ 
-20° C (-4°F)
Pull-pin; automatic on some vests
Firefly® Plus 1916 5.3x1.5in
(13.5x3.8cm)
5.0 oz
(142g)
ABS to 328 ft (100m)
when properly lubricated
Omni-
Directional 360°
N/A Manual up to 
2 mi
(3.2 km)
(strobe)
40 to 60 flashes/min Xenon flash tube and krypton bulb 2 "AA" alkaline (1yr replacement) or 1.5V lithium (5 yr replacement N/A 1 yr Strobe: 10 hrs
Flashlight:
2 hrs continuous
Twist left or right for strobe/flashlight
DistresS.O.S.™ 1842 7.6x4.8x8.3in
(19x12x21cm)
15.6 oz
(442g)
High impact polyethylene to 10 ft
(3.1m)
N/A N/A Manual 22 mi
(35.4km)
Flashes S.O.S. Morse code when on @50,000cd Krypton 4 "D" alkaline USCG 46 CFR 161.013 approved 1 yr 6 hrs minimum Easy activate manual switch, automatic signaling
NeverDark Spotlight 1812 7.6x4.8x8.3in
(19x12x21cm)
15.9 oz
(451g)
High impact polyethylene to 10 ft
(3.1m)
N/A N/A Manual N/A N/A Xenon 4 "D" alkaline N/A 1 yr 4 hrs typical w/alkaline batteries Easy activate manual switch
RLO-43 1905 6.6x3.3x1.6in
(11.5x8.4x4cm)
14.6 oz
(.4kg)
UV Stabilized composite polymer to 33 ft
(1m)
Exterior- All directions of the upper hemisphere
Interior- 10° ring general illumination 13° beam reading light
N/A Magnetic pull plug greater than 2 mi
(3.2km)
60±10 flashes/min Incandescent Lithium USCG 161.010/10/0 approved; meets SOLAS, LSA code Res. MSC .48(66), Res. A .689(17), Res. MSC .81(70) meets European Marine Directive 1 yr Exterior:
12 hrs minimum @ -30°C (-22°F) to 65°C (149°F)
Interior:
12 hrs minimum @ -30°C (-22°F) to 65°C (149°F)
Magnetic
pull plug