Instruction Manual
ENGLISH:
Battery Installation - See Figure 1
3 AAA 
•  Alkaline (LR03)
•  Lithium (L92)
•  Rechargeable NiCad or NiMH
Princeton Tec cares about the environment and recommends recycling 
batteries. For more information about battery recycling, please go to 
https://batterysolutions.com
Observe proper battery polarity. Improper installation of the batteries will 
damage the light and void the warranty.
WARNING !
•  Never mix fresh and used batteries.
•  Never mix different battery brands or chemistry types
•  Always remove drained batteries immediately.
•  Remove batteries during long periods of storage.
NOTE: Lithium batteries offer extended constant brightness time, 
extreme cold weather performance, and lighter weight. Rechargeable 
NiCad or NiMH batteries may result in reduced brightness due to lower 
nominal voltage.
The Vizz battery compartment has a waterproof seal. It is important to 
keep this seal free from dirt and away from harsh chemicals in order to 
preserve waterproof integrity. Inspect the seal every time batteries are 
changed. If dirt is present, wipe gently with a damp cotton swab and 
mild soap until dirt is removed.
Switch Operation - See Figure 2
From off: 
Single press -    Red
Double press -   White Spot
Tripple Press -   White flood
Five second hold -  Lockout
From On in any mode:
Hold -    Dimming
Press after more than two seconds - Off
A single press more than two seconds after the previous button press 
will turn light off.
From off, 5 second hold will lock light to prevent accidental turn on 
and resulting battery drain. The Indicator LED (located inside the power 
button) will blink three times to confirm lock. 5 Second hold from the 
locked state will unlock the light and the indicator LED will flash to 
confirm unlock. Removal and replacement of batteries will also reset 
Vizz to unlocked state
Troubleshooting
If the Vizz fails to light: 
•  Check the batteries for proper installation.
•  Replace batteries if proper installation is confirmed.
•  Check circuit board for water (the seal may have be compromised by 
improper rear cover installation or dirty seal). The light will resume nor-
mal operation once the water is shaken or blown out and the light is 
left open until completely dry. If the light has been contaminated with 
salt water, flush the unit with fresh water and dry as described above.
Vizz Tactical MPLS Accessories
To attach the Vizz Tactical MPLS to the NVG Shroud:
1.  Slide the bracket arm into the NVG Shroud adapter plate, making 
sure the pull tab is above the lip of the adapter plate and that the 
male grooves on the bottom of the bracket arm are aligned inside 
the female grooves on the bottom of the adapter plate.
2.  Push the bracket arm securely into place, ensuring that the pull tab 
audibly clicks over the lip of the NVG Shroud   
adapter plate.
3.  Your MPLS Headlamp should now be secured in the NVG Shroud. 
You can rotate the headlamp to focus your light source accordingly.
To remove the MPLS headlamp from the NVG Shroud:
1.  Remove the NVG Mount from your helmet.
2.  Push up slightly on the bottom of the light housing.
3.  While pushing upward, use the tool on the provided headstrap to 
press the tab of the arm bracket towards the headlamp housing, so 
that it disengages from the NVG Shroud adapter plate. 
4.  Slide the headlamp unit out of the NVG Shroud adapter plate.
To attach the MPLS Headlamp to the Butterfly Mount:
1.  Slide the bracket arm into the Butterfly Mount, making sure the pull 
tab is above the lip of the mount and that the male grooves on the 
bottom of the bracket arm are aligned inside the female grooves on 
the bottom of the mount.
2.  Push the bracket arm securely into place, ensuring that the pull tab 
audibly clicks over the lip of the Butterfly Mount.
3.  Your MPLS Headlamp should now be secured in the Butterfly Mount. 
The mount can be attached to the provided headstrap, MOLLE 
straps, or any 1” webbing.   You can rotate the headlamp to focus 
your light source accordingly.
To remove the MPLS headlamp from the Butterfly Mount:
1.  Push up slightly on the bottom of the light housing.
2.  While pushing upward, use the tool on the provided headstrap to 
press the tab of the arm bracket towards the headlamp housing, so 
that it disengages from the Butterfly Mount. 
3.  Slide the headlamp unit out of the Butterfly Mount.
USA Lifetime Warranty - International 10-YearWarranty
Due to International regulations, Princeton Tec’s lifetime warranty can 
only be offered to customers in the USA. Princeton Tec offers a 10-year 
warranty to our customers outside the USA. FULL WARRANTY - Princeton 
Tec warrants this product to be free from defects in workmanship and 
materials under normal use for as long as you own this product. This 
warranty covers all of the component parts of the product except 
batteries. This warranty does not cover deterioration due to normal 
wear or damage due to misuse, alteration, negligence, accidents, or 
unauthorized repair. Princeton Tec will repair or replace parts which 
are defective In workmanship or materials. Your authorized Princeton 
Tec Dealer and Princeton Tec are the only facilities authorized to repair 
the product. After (3) unsuccessful attempts to repair the product, you 
have the right to elect replacement of the product or a refund of the 
purchase price less allowance for use of the product. NO INCIDENTAL 
OR CONSEQUENTIAL DAMAGES ARE INCLUDED IN THIS WARRANTY. 
(Some states do not allow the exclusion or limitation of incidental or 
consequential damages, so the above limitations or exclusions may not 
apply to you.) This warranty gives you specific legal rights, and you may 
also have other rights which vary from state to state.
Princeton Tec reserves the right to change product specifications 
without notice.
FOR CALIFORNIA RESIDENTS:
WARNING: This product contains Bisphenol A (BpA) a chemical known to 
the State of California to cause birth defects or other reproductive harm.
Return Policy
If your light fails to operate, follow these simple steps:
1.  Check batteries. Replace if necessary.
2.  To send your light in for repair or replacement, first contact 
Princeton Tec customer service on 
1-800-257-9080 to request an RMA number. Please have your 
light model, date of purchase and a brief description of the fault 
you are experiencing. No warranty repairs will be accepted without 
an RMA number.
3.  Return the light without batteries to: 
Princeton Tec, PO Box 8057 Trenton NJ 08650. Postage due and 
freight collect items will not be accepted.
4.  Upon receipt your light will be processed in about two weeks. 
Please allow additional time for return transportation from NJ.
Princeton Tec 
PO Box 8057, 
Trenton, NJ 08650 
Phone: 609-298-9331 
Fax: 609-298-9601 
princetontec.com  
© 2021 Princeton Tec
VIZZ
® 
 MPLS
Figure 1 – Battery Replacement 
1 2 3 4
Figure 2 – Switch Operation 
Press 2x:
White Spot
Press 1x from On: 
Off
Press 5 seconds from Lock: 
Unlock 
Press 5 seconds: 
Lock-Out 
Press 1x:
Red
Press 3x:
White Flood
From any mode:
Hold:
Dimming
Figure 3 – Performance
Modes Runtime Beam Pattern Regulated Reserve
SPOT HIGH 4 - 132h
SPOT LOW 54h - 54h
WHITE FLOOD
90h 6h 14h
RED
135h
16h 15h
DISTANCE (m)  0  16  25      79 
(ANSI FL-1 Standard)
Runtime is defined as the duration of time from the initial light output value—defined as 30 seconds after the point the device is first turned on—
using fresh batteries, until the light output reaches 10% of the initial value.
Reserve time is the duration of time from 10% of initial light output value down to 0.25 lux
Figure 4 – Mounting System -
1 2 1 2
Operating and Maintenance Instructions




