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Fenix WT20R Adjustable Head Flashlight

Max Lumens: 400
Modes: 6
(8 customer reviews)

$92.00 $69.95

The Fenix WT20R flashlight is ready to get the job done! The 105° angle adjustable head puts up to 400 lumens of light right where you need it. Quickly switch between spotlight for longer distances or floodlight for close-in lighting with the side switch. Use the built-in belt clip or magnetic tail to place the flashlight just about anywhere for hands-free lighting. Recharge the WT20R’s included battery pack (AA batteries can be substituted in an emergency) and always know the battery’s status with the battery level indicator. Rugged, dustproof and rain resistant, the WT20R will become your go to flashlight for work and leisure activities.

For commercial orders and large purchases, contact us at (888) 775-9996 x6, or
WARNING. Be aware of counterfeit Fenix merchandise in the U.S. marketplace.

Max Lumens: 400
Modes: 6


fenix wt20r specs chart

Length: 4.6’’ (117.5mm)
Head: 1.7’’ (43.2mm)
Body: 1.1’’ (28.3mm)

Weight: 5.4 oz. (154g) including battery

Battery: Included 2000mAh rechargeable Li-polymer battery pack or two AA batteries*

Included: ARB-LP-2000U rechargeable li-polymer battery pack, Micro USB charging cable, spare O-ring, lanyard

Warranty: Limited Lifetime Guarantee from Fenix Lighting USA

*High brightness level is not available when using AA batteries.

  • 2 Cree LEDs with a lifespan of 50,000 hours.
  • Both spot or floodlight beam pattern available with a max output of 400 lumens.
  • Included 2000mAh rechargeable Li-polymer battery pack. Two AA batteries can be used in an back-up situation (no high brightness level available).
  • Light head with 105°adjustable angle.
  • Magnetic tail.
  • Battery level indication for instant checking of remaining battery level.
  • Digitally regulated output maintains constant brightness.
  • Reverse polarity protection, to protect from improper battery insertion.

With the light switched off, press and hold the switch for 0.5 seconds to turn on the light.
With the light switched on, press and hold the switch for 0.5 seconds to turn off the light.

Output Selection
With the light switched on, single click the switch to cycle through Low→Med→High.

Note: Only Med and Low can be selected when 2 AA batteries are used.

Mode Switching
With the light switched on, a fast double click on the switch to select spot- and floodlights.

Intelligent Memory Circuit
The light memorizes the last selected output and mode. When turned on again the previously used output and mode will be recalled.

Battery Replacement
Unfasten the lock catch, and pull open the tail cap to insert the included ARB-LP-2000U Li-polymer battery pack according to the arrow shape, or to insert 2 AA batteries in accordance with the polarity mark, then replace the tail cap and fasten the lock catch.

Low Voltage Warning
When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until Low output is reached. When this happens in Low output, the battery level indicator blinks to remind you to recharge or replace the battery.

Note: This only works with the included ARB-LP-2000U Li-polymer battery pack.

Battery Level Indicator
With the light switched off, single click the switch to check the battery status, the indicator will last for 5 seconds.

  • Four lights on: 100% – 80%
  • Three lights on:80% – 60%
  • Two lights on:60% – 40%
  • One light on: 40% – 20%
  • One light flashes: 20% – 0


  1. When charging is needed, take out the battery pack and then connect it to the power source with the Micro USB charging cable. The indicator on the top of the battery pack will be on and display red to indicate charging status, when the indicator turns blue, the charging is completed.
  2. Recharge a stored light every four months to maintain optimal battery performance.

Usage and Maintenance

  • Disassembling the sealed head can cause damage to the light and will void the warranty.
  • Fenix recommends using an excellent quality AA 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.
  • 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 pack /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.

8 reviews for Fenix WT20R Adjustable Head Flashlight

  1. Edgar (verified owner)

    I love it, it’s just beautiful, the square shape it’s my favorite, the futures are unique, the belt clip it’s strong and keep it tight in my pants, I used it for work, hiking, camping and fishing and is one of my EDC.

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  2. Donald R. (verified owner)

    Nice light except belt clip is almost useless, might fit a dress belt but not so much for even a light weight work belt.

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  3. James (verified owner)

    One of the best and most versatile flashlights I have ever used.

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  4. Devon H. (verified owner)

    I’m a huge fan of Fenix flashlights and this one is no exception. I’ve only had it a few weeks and it’s been handy enough times that I already consider it indispensable.

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  5. C M (verified owner)

    Great light, a little apprehensive about the proprietary battery, but there is the AA option.

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  6. Thomas Piteo (verified owner)

    Great lite with excellent features. The only way to improve it would be to add RGB options.

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  7. Michael P. (verified owner)

    Before I placed my order, I contacted sales support online and asked what the body was made from. I was told the complete unit was made from machined aluminum. Well, it’s not. The head unit is but the larger bottom section is not. It’s a high-grade plastic. Time will tell if it last as long as my other Fenix units.

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  8. Keith D. (verified owner)

    Good light no issues at this point

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