Fenix UC35 V2.0 USB Rechargeable Flashlight-1000 Lumens

$120.00 $89.95

Out of stock

The Fenix UC35 V2.0 rechargeable flashlight is the 2018 upgrade to the Fenix UC35 flashlight. Fitted with the Cree XP-L HI V3 LED, this light delivers a maximum 1000 lumens at a distance of 873 feet (266 meters). Turn the light on and off with the tactical tail switch and cycle through the six lighting modes via the newly designed metal side switch—which also has a built-in battery level indicator. You can achieve an incredible 800 hours of runtime when using the new moonlight brightness level. Compact and built-tough, the Fenix UC35 V2.0 flashlight is IP68 rated; dust proof and waterproof underwater to two meters.

2018 upgrade improvements over prior Fenix UC35:
-XP-L HI v3 LED provides greater brightness, efficiency and throw
-Improved stainless steel side switch with battery level indicator
-New body design is more compact
-Includes higher capacity 3400 mAH rechargeable battery for longer runtime
-USB port improved to charge faster and is easier to activate
-Improved waterproof and dust-proof rating (IP68)

SKU: UC35V2BKN/ABarcode: 6942870305875N/A
Max Lumens: 1000
Modes: 6
Battery: 18650 or CR123A

For commercial orders and large purchases, contact us at (888) 775-9996 x6 or GET A QUOTE

WARNING. Be aware of counterfeit Fenix merchandise in the U.S. marketplace. READ MORE >>


Max Lumens: 1000
Max Beam Distance: 873 feet (266 meters)
Max Runtime: 750 hours
Lighting Modes: 5
Bulb Type: Cree XP-L HI V3 LED
Size: Length: 5.5” (140mm) Body: 0.9” (23.5mm) Head: 1.0” (25.4mm)
Weight: 3.1 oz. (89g) weight excluding batteries
Battery: One rechargeable 18650 Li-ion battery (included) or two CR123A batteries. NOTE: The light will not work with flat-top 18650s. We recommend any of the ARB-L18 series from Fenix for backup or replacement.
Included: As of Sept. 7th, 2021: ARB-L18-3400 Li-ion battery, Micro-USB charging cable, body clip, spare rubber switch boot, lanyard, holster, two spare O-rings
Warranty: Limited Lifetime Guarantee from Fenix Lighting USA
Fenix UC35 V2.0 USB Rechargeable Flashlight-1000 Lumens specs chart

More Information

Additional Features of the Fenix UC35

  • Cree XP-L HI V3 LED, with lifespan of 50,000 hours
  • Powered by one 18650 rechargeable Li-ion battery or two 3V/CR123A Lithium batteries
  • 5V/2A Micro USB rechargeable, included 18650 rechargeable Li-ion battery
  • Battery level indication and low-voltage warning function
  • Digitally regulated output maintains constant brightness
  • Reverse polarity protection to protect from improper battery insertion
  • Anti-roll and anti-slip body design
  • Tactical tail switch features instant activation
  • Functional side switch for output selection
  • Made of durable high-strength and oxidation-resistance aluminum
  • Premium type HAIII hard-anodized anti-abrasive finish
  • Toughened ultra-clear glass lens with an anti-reflective coating


The tail switch is the tactical switch, and the side switch is the functional switch.




Tap the tactical switch to momentarily turn on the light; release it and the light will go out. 


Fully press 

Fully press the tactical switch to constantly turn on the light; press once again to turn off the light.


Output Selection

With the light switched on, single click the functional switch to cycle through Turbo→Moonlight →Eco→Low→Med→High.



With the light switched on, press and hold the functional switch for 0.5 seconds to enter strobe, click once again to return to General mode.


Boot-up Battery Level Indication

Each time the light is turned on, the battery level indicator will automatically display the battery status for 3 seconds. 

  • Green constant on: saturated
  • Green flashes: sufficient
  • Red constant on: poor
  • Red flashes: critical

Note: There is no indication when CR123A battery is used.


Intelligent Memory Circuit

The light memorizes the last selected brightness level on General mode. When turned on again the previously used brightness level will be recalled.


Intelligent Protection

The light will accumulate a lot of heat when working at Turbo mode. When the light is overheated up to 60°C or above, the flashlight will automatically step down a few lumens to reduce the temperature; when the temperature is lower than 60°C the output will gradually return to Turbo output level.


Low-voltage Warning

When the voltage level drops below 3V, the flashlight is programmed to downshift to a lower brightness level until Moonlight output is reached. When this happens in Moonlight mode, the battery level indicator will flash red to remind you to replace the battery. To ensure normal use, the flashlight will work until the battery runs out or the battery over-discharging protection activates. 


Note: The low-voltage warning only works with rechargeable Li-ion 18650 battery, not with disposable CR123A's.



  1. Turn off the light. Plug the USB side of the charging cable into any USB power supply. Uncover the dust cover of the light, and plug the Micro USB side of the charging cable into the charging port of the light.
  2. The battery level indicator displays red while charging and turns to solid green when charging is complete. The normal charging time of the included Fenix ARB-L18-3400 is about 3.2 hours.
  3. Once charging is completed, be sure to remove the charging cable and replace the dust cover to protect against dust and foreign objects.
  4. Recharge a stored light every four months to maintain optimum performance of the battery.
  5. Only Low output can be used while the light is being charged, but charging time will be prolonged.

Battery Replacement

Unscrew the tail cap to insert the battery with the anode side (+) towards the light head, then screw the tail cap back on.


Usage and Maintenance

  • Disassembling the sealed head can cause damage to the light and will void the warranty.
  • Fenix recommends using an excellent quality battery.
  • If the light will not be used for an extended period, remove the battery, or the light could be damaged by electrolyte leakage or battery explosion.
  • Unscrew the tail cap half a turn or take out the battery to prevent accidental activation during storage or transportation.
  • Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring with an approved spare.
  • Periodic cleaning of the battery contacts improves the lamp's performance as dirty contacts may cause the lamp to flicker, shine intermittently or even fail to illuminate for the following reasons:

A: The battery needs replacing. 

Solution: Replace battery (Ensure battery is inserted according to the manufacturer’s specifications). 


B: The threads, PCB board contact or other contacts are dirty. 

Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol. If the above methods don't work, please contact your authorized distributor.  


Warning This flashlight is a high-intensity lighting device capable of causing eye damage to the user or others. Avoid shining the flashlight directly into anyone’s eyes.

No FAQs available.

Product Videos

Customer Reviews

Based on 429 reviews
Useless warranty

Problems with charging and normal usage of the flashlight UC35 not met, sometimes stays on when disconnecting from recharge. Sometimes doesn't even power on when it's full. It's my light for work, worst flashlight I bought so far. Contacted the warranty and got replied to change the battery (they were not even 1 year old when condition started). Both flashlights I own are doing the same. Got replied by Laura that I had to replace the batteries by Fenix Brand batteries (which they are right now). But the battery cost half the price of the flashlight. Will now buy from another company! It's supposed to be ''Lifetime warranty''....

Hi Kevin - I spoke to Laura, and while she did state that yes, she had made the recommendation on the batteries, she had not heard back from you after that. As such, she was under the impression the issue was resolved. Obviously from your review, the batteries do not seem to be the problem, so I would recommend responding to that last email from Laura to let her know that wasn't the problem and you can get you set up to send in your light for warranty.

What the PD35 used to be

I was delighted to see that this light has the beam pattern similar to the older PD35 models which is the main reason for purchase. It has just the right amount of brightness in that 1000 lumen range with good throw while maintaining enough spill to see more than just a focused and limited point. I also love the moonlight mode, the older style knurling and the side button which is easier to locate by feel but also partially protected from accidental switching. Now if Fenix would bring back the front front spring for more reliable weapon mounting and flat top battery usage they would return to the throne of my favorite edc.

Chuck M
My go to camping light

This was the second one I bought because I wanted one to "live" in my camper and one for home. The "1 lumen" setting is ideal for getting up at night and moving around the trailer without disturbing my wife or having the glare of a super bright light. I really like that it "remembers" what setting it was on so every time I turn it on it is the right setting. I also align the pocket clip with the adjust button so its easy to find in the dark. Of course when you want to light up what is making that noise 100 yds from camp this light does that too!

Was a favored light

Stopped working and yes it’s charged

Did you contact warranty to troubleshoot?

888-775-9996 ext 1

Dale Swier
Fenix Light Delight

I recently purchased two of the UC35 flashlights. I already have one of these and really like it a lot. I also have a Fenix headlamp that I really like. I wanted a couple more to keep in certain strategic locations and Justin leave them in those spots so I’d always have a light there. These are very good quality lights with a number of settings. I’ve always liked the first two I’ve had for about five years so getting a couple more from Fenix was a no brained in my opinion.

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Fenix UC35 V2.0 USB Rechargeable Flashlight-1000 Lumens

$120.00 $89.95