Fenix UC35 V2.0 Rechargeable Flashlight-1000 Lumens

Rated 4.93 out of 5 based on 28 customer ratings
(28 customer reviews)

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 UC35 V2.0 flashlight is IP68 rated; dust proof and waterproof underwater to two meters.

2018 upgrade improvements over prior 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 3500 mAH rechargeable battery for longer runtime
-USB port improved to charge faster and is easier to activate
-Improved waterproof and dust-proof rating (IP68)

$120.00 $89.95

4.93 out of 5
WARNING. Be aware of counterfeit Fenix merchandise in the U.S. marketplace. Click here for more details.

For commercial orders and group purchases, contact us at (888) 775-9996 x2, or

Max Lumens: 1000
Modes: 6

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: ARB-L18-3500 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

Notice: Parameters lab tested with a Fenix ARB-L18-3500 18650 battery and may vary between flashlights, batteries and environments.

MODE Lumens
Impact Resistance
Moonlight 1 800h 33ft (10m) 25cd
Low 50 28h 10min 210ft (64m) 1000cd
Medium 150 10h 40min 322ft (98m) 2400cd
High 350 4h 10min 525ft (160m) 6400cd
Turbo 1000 2h 15min 873ft (266m) 17700cd
Strobe 1000
1m IP68, waterproof underwater to 2m/dust proof
Additional Features
  • 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

Operating Instructions

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-L18-3500 is about 3.5 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. 

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.

Reviews (28)

28 reviews for Fenix UC35 V2.0 Rechargeable Flashlight-1000 Lumens

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  1. Rated 5 out of 5

    Anonymous (verified owner)

    Love the flashlight. Very sturdily built, and extremely bright.

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  2. Rated 5 out of 5

    Michael (verified owner)

    Perfect upgrade. Beam is tight and battery lasts quite a while. Look forward to getting another one if they offer it Cerakoted.

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  3. Rated 4 out of 5

    Anonymous (verified owner)

    New edc just wish there was a shortcut to high

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  4. Rated 5 out of 5

    Yuri T. (verified owner)

    Great flashlight

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  5. Rated 5 out of 5

    John J. (verified owner)

    The UC35 V2.0 shipped and arrived very quickly after the purchase and has a look and feel of quality. The light worked as advertised right out of the box (after charging the battery, of course) and although I do not know how to measure the output (for comparison to the advertised specs) the beam is very sharp, bright and focused. I have not had the light long enough to attest to its durability. However, with Fenix’s reputation for customer service and ,support, I’m not going to be overly concerned.

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  6. Rated 5 out of 5

    Junuen (verified owner)

    Great flashlight, long runtime and super bright. So far the best one I have in my collection

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  7. Rated 5 out of 5

    Sam K. (verified owner)

    Excellent light for car, home or everyday carry. Great light throw for its size and the range of brightness meets all my needs.

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  8. Rated 5 out of 5

    Elroy A (verified owner)

    No better flashlight for the money along with great customer service and tech support– Thanks!!

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  9. Rated 5 out of 5

    Michael Roedel (verified owner)

    I think that this flashlight is great and good compact size

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  10. Rated 5 out of 5

    Michael H. (verified owner)

    Absolutely amazing!! Brightest light I have ever used. 2nd purchase, and won’t be my last.

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  11. Rated 5 out of 5

    Dennis P. (verified owner)

    Great flashlight and almost any application. Never without it!

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  12. Rated 5 out of 5

    Shannon Fullwood (verified owner)

    The flashlight exceeded my expectations, it is well constructed and very bright. I carry two of these when I’m on duty. Definitely would buy again.

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  13. Rated 5 out of 5

    Anonymous (verified owner)

    Fabulous light. Small enough for my pocket when carrying CCW.. great addition. Got this one for my wife. Easy for her to use

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  14. Rated 5 out of 5

    Joe P. (verified owner)

    Wow, what a light. Works perfect, lights up the night.

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  15. Rated 5 out of 5

    Todd P. (verified owner)

    Very nice light. Well made and very powerful. Has several different light settings and also a strobe setting. Extremely bright on its highest setting and strobe setting. Very happy with the quality of this light. Would buy again.

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  16. Rated 5 out of 5

    Vince (verified owner)

    Nice, bright, battery seems to last

    1 out of 1 people found this helpful. Was this review helpful to you?
  17. Rated 4 out of 5

    David C (verified owner)

    This is one of the best all around lights I’ve ever used to date – I work in LE and use it as my backup light – the 1,000 lumens is enough to use as a flood light & is excellent for building searches & room clearing. The mid-range lumens are excellent for vehicle/person searches. The 1 lumen is excellent for when I drop things in the car and have to find them on night-shift. In the off-time (I’m an avid outdoorsman) and this becomes a safety light on road trips and for anything outdoors related it can’t be beat. Again, the 1 lumen was a winning selling point for me because it is SOOO useful.

    Pros: Variable lumen outputs in well-thought-out increments.
    Pros: Durable & reasonably “waterproof” (so far I’ve never had issues with water failure)
    Pros: Huge fan of being able to use 123 batteries and the 18650s interchangeably

    Cons: For all the Fenix Lights that have the rubber tail-button, WHY can they not design it so the button does NOT extend beyond the guard so it can be stood on it’s tail.
    Con’s: Probably my biggest complaint, though I really like the side switch – it’s a bit small and when working in the dark (duh) it’s difficult to locate. I think an improvement would be either a larger, easier to find button, or a permanently illuminated side switch so changing the brightness would not be a challenge.

    All-around HIGHLY RECOMMEND.

    1 out of 1 people found this helpful. Was this review helpful to you?
  18. Rated 5 out of 5

    sean p. (verified owner)

    I have been using the original UC35 for a couple of years and absolutely love it! When I saw that V2.0 came out I jumped on it. The light is a bit more on the bright white side and is more of a focused beam compared to the original, but it still floods out very well. I’d recommend this light to anyone looking for something of quality and versatility. Love it and would buy again.

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  19. Rated 5 out of 5

    Robert (verified owner)

    Very bright! Great price for all these desirable features. Anxious to find out how well the charge lasts.

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  20. Rated 5 out of 5

    Josh (verified owner)

    I have had this light for about 1 month now and it has exceeded all of my expectations. With the choice of multiple light levels it is a light for every task. The best part is that I don’t need to order surefire batteries anymore.

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  21. Rated 5 out of 5

    Jason (verified owner)

    This thing is great! Excellent build quality and materials. Rediculous amount of light from such a small package. I also have the older UC40UE 900 lumen. This model is noticeably brighter and more convenient with the tail cap on/off switch. Highly reminded Fenix products to everyone I know. Absolute top notch flashlights, you won’t be disappointed.

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  22. Rated 5 out of 5

    Daniel M. (verified owner)

    This is my every day carry, but I like it so much, I had to buy a second!

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  23. Rated 5 out of 5

    Anonymous (verified owner)

    Nice light, convenient operation and throws a little or a lot of light depending on what I require.

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  24. Rated 5 out of 5

    Joe M. (verified owner)

    very impressive light, much smaller that I imagined, perfect for everyday carry, and extremely bright. can’t believe it puts out so much light. also 5 brightness settings are perfect

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  25. Rated 5 out of 5


    Kickass light! I bring this thing everywhere with me, great job Fenix! Customer service also gets an A+.

    4 out of 4 people found this helpful. Was this review helpful to you?
  26. Rated 5 out of 5

    Joe Mayo

    Awesome Flashlight ! / a lot smaller that it appears, which is good. very small and lightweight, yet has a extremely bright light. and 5 level settings. I am a flashlight nut and have many , including other Fenix products. I would highly recommend this light

    1 out of 1 people found this helpful. Was this review helpful to you?
  27. Rated 5 out of 5


    Another great Fenix light! I own the LD01, PD32UE, PD35Tac, and now UC35. UC35 V2,0 is slick looking, easy to operate, and love the recharge ability. 5 stars all the way.

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  28. Rated 5 out of 5

    Brian Miller

    Great improvements on a already great product. Love the XP-L HI LED from CREE. It does tend to white out some objects with the 1000 lumen level, but with the optics system it throws more light and gives me more visibility in most moments. The new battery indicator and side switch are nice improvements. My original UC35 is 3 years old and I’ve started to wear the side switch down. That is literally the only wear on this model that I’ve used everyday for 3 years. So now I have the new UC35 V2 with a metal side switch. Here is expecting 3 years and beyond. On a additional note

    The original UC35 was a great light, but it had one major flaw. When you charged the light you had to click the switch to activate charging. If you forgot to click the tail-switch after plugging in micro-usb then it would not begin to charge. Over the time I owned the original, I must have forgotten to do that a 100 times and was furious the next day when it wasn’t charged for work. THIS LIGHT FIXED THAT! Just plug the light in and it begins charging just like anything else I own that recharges. Thank you, thank you, thank you! It’s good to know that others had issues with this also and forced this improvement.

    Bottomline- If you owned the original, there is enough here to love that you should consider the upgrade and pass the original on to your favorite relative. They will love that you are providing them a high performance light and you will have an improved product that is still what your accustomed to using. If you have never owned this light, then what are you waiting for! Get it now.

    2 out of 2 people found this helpful. Was this review helpful to you?
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