Fenix LR50R User manual

FenixLR50RFlashlight

TechnicalParameters
ANSI/
PLATOFL1
GeneralMode FunctionalMode
Turbo HighII HighI Med Low Eco Turbo Strob
e SOS

Output
12000
lumens
6000
lumen
s
3000
lumen
s
1000
lumen
s
350
lumen
s
50
lumen
s
12000
lumen
s
6000
lume
ns
350
lume
ns

Runtime
1hour
50
minute
s*
2hour
s20
minut
es*
2hour
s40
minut
es 
7hour
s40
minut
es 
24hou
rs
58hou
rs
1hour
50
minut
es*
/ /

Distance
950
meters
690
meter
s
480
meter
s
280
meter
s
165
meter
s
70
meter
s
950
meter
s
/ /

Intensity
225750
candela
11840
0
candel
a
58200
candel
a
19800
candel
a
6850
candel
a
1200
candel
a
22575
0
candel
a
/ /

Impact
Resistanc
e
1meter

Submersi
ble
IP68
Note: The above specifications are from the results produced byFenixthroughitslaboratory
testing using the Fenix ARB‐L52‐16000 rechargeable battery pack, under the temperature of
21±3°Candhumidityof50%‐80%.Thetrueperformanceofthisproductmayvaryaccordingto
differentworkingenvironmentsandtheactualbatteryused.
*TheTurbo,HighIIoutputaremeasuredintotalofruntimeincludingoutputatreducedlevelsdue
totemperatureorprotectionmechanisminthedesign.
*TheTurbooutputwillbe6000lumensandtheStrobewillbe3000lumenswhenuses21700

batteryduetothelimitedbatterypower.

RuntimeGraphics 

ProductFeatures 
 12000lumensmaximumoutput;950lumensmaximumbeamdistance. 
 4LuminusSST70LED'swithalifespanof50,000hours.
 Includeda3.6V/16000mAhrechargeableLI‐ionbatterypack;compatiblewith1‐421700Li‐
ionbattery.
 Intelligentbrightnessdownshiftingsensortoavoidhightemperatureatclose‐rangelighting.
 InstantTurboactivationrapidlyrespondstoemergencysituations.
 USB Type‐C charging and discharging interface, supports PD3.0/PD2.0, QC3.0/QC2.0 fast‐
chargingprotocols.
 Batterylevelindicationforinstantcheckingofremainingbatterylevel.
 MadeofdurableA6061‐T6aluminum.
 PremiumtypeHAIIIhard‐anodizedanti‐abrasivefinish.
 Size:6.42''x3.46''x2.36''/163x88x60mm.
 Weight:34.8oz/986g(includingbattery)

OperatingInstruction 
Switches 
Therightswitchisthemainswitchforon/offandoutputselectionongeneralmode.

Theleftswitchistheauxiliaryswitchforon/offandoutputselectiononfunctionalmode.

On/off 
Pressandholdeitheroftheswitchesfor0.5secondstoturnon/offthelight.

Modeswitching 
Ingeneralmode,singleclicktheauxiliary(left)switchtoenterturboonfunctionalmode.
In functional mode,single click themain (right) switch to enter the previously used output on
generalmode,

OutputSelection 
Ingeneralmode,singleclickthemain(right)switchtocyclethrough Eco→Low→Med→High I
→HighII→Turbo.
Infunctionalmode,singleclicktheauxiliary(left)switchtocyclethroughTurbo→Strobe→SOS.

LockoutFunction 
Lock:Withthethelightswitchedoffandunlocked,simultaneouslypressthetwoswitchesfor3
seconds,thelightwillblink2timesonEcotoindicatelockedstatus.

Unlock:Withthelightlocked,simultaneouslypressthetwoswitchesfor3seconds,thelightwill
beactivatedonEco.
*Inlockedstatus,clickingorpressingtheswitcheswillactivate2one‐secondblinkstoindicate
lockedstatus.

InstantTurbo/Strobe/SOS
Withthelightswitchedoff,pressandholdtheauxiliary(left)switchfor0.5secondstoenterinstant
turbo,singleclicktheauxiliaryonceagaintoenterstrobeandthenSOS.

IntelligentMemoryCircuit 
Ingeneralmode,thelightmemorizesthelastselectedoutput.Whenturnedonagainthe

previouslyusedoutputofgeneralmodewillberecalled.
Infunctionalmode,thelightwillbeactivatedonTurboeachtimeitisturnedon,foremergency
situations.
*Thelightdoesnothavememoryfunctionif21700batteryisused.

BatterySpecifications 
Type Dimension
Nominal
Voltage
Usability 
Li‐ionbatterypack FenixARB‐L52‐16000 3.6V Recommended √√
Rechargeablebattery(Li‐
ion)
21700* 3.6V Usable √
Rechargeablebattery(Li‐
ion)
18650 3.6V Banned ×
Non‐rechargeablebattery
(Li‐ion)
CR123A 3.0V Banned ×
*Warning:21700Li‐ionbatteriesarepowerfulcellsdesignedforcommercialapplicationsandmust
betreatedwithcautionandhandledwithcare.Onlyusequalitybatterieswithcircuitprotection
will reduce the potential for combustion or explosion; but cell damage or short circuiting are
potentialriskstheuserassumes.

BatteryReplacement 
Unscrewthelightbodytoinsertthebatterywiththeanodeside(+)towardsthelighthead,then
screwthelightbodybackon.

Charging 
1.FirstswitchoffthelightandplugtheUSBAsocketofthechargingcableintoanelectricaloutlet,
thenconnecttheUSBType‐Csocketofthechargingcabletothelight.
2. Whencharging,thechargingindicatorswillflashfromlefttorighttodisplaychargingstatus.The

fourindicatorswillbeconstant‐onafterchargingiscomplete.
3.Besuretoclosetheanti‐dustcoveroncechargingiscompleted.

PowerBankFunction 
1.Switchoffthe lightandplugtheUSBType‐Csocketofthe chargingcableintothe light,then
connecttheanotherUSB Type‐Csocketof thechargingcabletothe digitaldevicewithanUSB
Type‐Cport. 
2.Singleclickeitheroftheswitchestobegindischarging,theindicatorswillrecedefromrightto
lefttodisplaythestatus.
3.Besuretoclosetheanti‐dustcoveroncechargingiscompleted.

Note:
1. OnlyEcooutputlevelisavailablewhencharginganddischarging.
2. TheUSBType‐Cportintheneckcombinescharginganddischargingfunction.
3. The light and the included charging cable support PD3.0/PD2.0, QC3.0/QC2.0fast charging
protocols,theexternaladapterwillbeauto‐detectedifitsupportsthementionedfast‐charging
protocols,ifitdoesthen4.0Achargingcurrentwillbeselected,or2.5Achargingcurrentwillbe
selected.
4.Rechargeastoredlighteveryfourmonthstomaintainoptimumperformanceofthebattery.

BatteryLevelIndication 
Withthelightswitchedoff,singleclickeitherswitchtocheckthebatterystatus,whichwilllastfor
3seconds. 
Fourbluelightson:100%‐80%
Threebluelightson:80%‐60%
Twobluelightson:60%‐40%
Onebluelighton:40%‐20%
Onebluelightflashes:20%‐0
Note:ThisonlyworkswiththeincludedFenixARB‐L52‐16000batterypack.


IntelligentBrightnessDownshiftingSensor
Theflashlighthasabuilt‐inintelligentsensingcircuit.Whenthelightsurfaceisclosetothelighting
object(about60mm)formorethan1.5seconds,theflashlightwillautomaticallydownshiftthe
outputleveltoEcotoavoiddangercausedbyhightemperature.Whenthelightsurfaceismore
than0.8secondsawayfromthelightingobject,theflashlightautomatically recalls the
previouslyusedoutputlevel.
*As objects of different materials and colors reflect differentlytolight,therewillbeslight
deviationsinthesensingdistance.

IntelligentProtection 
Time‐limiteddownshift 
Withthelightswitchedon,ifTurboisbeingselectedforover20seconds,thelightwilldownshift
untilto8000lumenswithin60seconds.
Withthelightswitchedon,ifHighIIisbeingselectedforover60seconds,thelightwilldownshift
untilto4000lumenswithin60seconds.
Note:Theabovementionedfunctionsarespeciallydesignedforavoidingdiscomfortanddanger
causedbyoverheating.

OverheatProtection 
The light will accumulate a lot of heat when used on High I, High II or Turbo outputlevel for
extendedperiods.Whenthelightreachesatemperatureof60°Cor above, the light will
automaticallystepdownafewlumenstoreducethetemperature.Whenthetemperaturedrops
below60°C,itwillthenallowtheuserforthereselectionofthosemodes. 

Low‐voltageWarning 
Whenthevoltageleveldropsbelowthepresetlevel,theflashlightisprogrammedtodownshiftto
alowerbrightnessleveluntilEcooutputisreached.WhenthishappensinEcooutputmode,the
batterylevelindicatorblinkstoremindyoutotimelyrechargeorreplacethebattery. 

Note:ThisonlyworkswiththeincludedFenixARB‐L52‐16000batterypack.

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.
 Lockthelightortakeoutthebatterytopreventaccidentalactivation during storage or
transportation. Recharge a stored battery every four months to maintain optimal battery
performance.
 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light'sperformanceasdirtycontacts
maycausethelighttoflicker,shineintermittentlyorevenfailtoilluminateforthefollowing
reasons:
A:Thebatteryneedsreplacing.
Solution:Replacebattery(Ensurebatteryis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.

Included 
Fenix LR50R flashlight, ARB‐L52‐16000 Li‐ion battery pack, USB Type‐Cchargingcable,Lanyard,
Holster,Shoulderstrap,SpareO‐ring,Usermanual,Warrantycard

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.
 Thisflashlightwillaccumulatealotofheatwhenusedforextendedperiods,resultinginhigh
temperatureoftheflashlightshell.Payattentiontosafeusetoavoidscalding.

 Allinformationprovidedinthismanualissubjecttochangewithoutpriornotice.