The Fenix CL20R Pro is a smart rechargeable camping lantern with a radar motion sensor for hands-free on/off. This product is offered in multiple color options, which may change over time, so this summary does not reference any specific color. This summary is drawn from the manufacturer's official user manual — see the downloadable PDF reference manual on the product page for complete details.
Warning
- Do not place this lantern in the reach of children.
- Do not shine this lantern directly into the eyes of anyone.
- Do not place this lantern near flammable objects — high temperatures can cause objects to overheat and become flammable/ignite.
- Do not use this lantern in inappropriate ways such as holding the unit in your mouth; doing so could cause serious personal injury or death if the lantern or internal battery fails.
- This lantern will accumulate a lot of heat while operating, resulting in a high temperature of the lantern's outer case. Pay close attention to avoid burns.
- Remove the battery to prevent accidental activation when the lantern is placed in a closed and flammable environment such as pockets and backpacks.
- The LEDs of this lantern are not replaceable; the whole lantern will need to be replaced when any one of the LEDs reaches the end of its lifespan.
Overview
- 400 lumens maximum output, 15 meters maximum beam diameter.
- Twenty-seven 2835 LEDs and twenty-four high-quality 2020 RGB LEDs, each with a lifespan of 50,000 hours.
- Built-in 5.8GHz radar sensor module allows the lantern to automatically turn on when approached and power off after departure for hands-free energy saving.
- Delay-off function available at all brightness levels in General mode.
- Scene mode features multiple RGB lighting effects, including RGB Chase, RGB Flow, and Stepless RGB.
- Corresponding outputs for the Switch Light Ring and the Scene mode are switchable.
- Powered by a 1900mAh battery; also compatible with three AAA batteries.
- Standard USB Type-C charging port.
- Battery level indication and low-voltage warning.
- Magnetic base and hanging loop for multiple mounting options.
- Made of quality plastics and highly transparent material for a smooth, anti-glaring beam.
- IP65-rated protection.
- Size: 3.15" x 1.89" x 2.13" / 80 x 48 x 54 mm. Weight: 4.30 oz / 122 g (including battery).
Operating Instructions
Mode A is General mode, Mode B is Scene mode, and Mode C is Switch Light Ring mode.
On/Off: With the lantern turned off, press and hold the switch for 0.5 seconds to turn the lantern on and enter Mode A; double click the switch to turn the lantern on and enter Mode B; or single click the switch and then single click it again within 3 seconds to turn the lantern on and enter Mode C. With the lantern on, press and hold the switch for 0.5 seconds to turn it off.
Mode Switching: In Mode A, double click the switch to enable the Delay-off function (the switch light ring displays purple; the lantern automatically turns off after 20 minutes). In Mode B, double click the switch to switch to Mode C, and vice versa. The corresponding outputs for Mode B and Mode C are switchable — switching between them preserves the current output type.
Output Selection: In Mode A, single click the switch to cycle through Moonlight→Low→Med→High. In Mode B, single click the switch to cycle through Red constant-on→Red flash→RGB chase→RGB flow→Stepless RGB. In Mode C, single click the switch to cycle through RGB chase→RGB flow→Red constant-on→Red flash. In the Stepless RGB output, double click the switch to freeze the current color or resume color changing.
Intelligent Memory Circuit: The lantern automatically memorizes the previously used output of General mode. When turned on again, the previously used output will be recalled. Note: the lantern will activate in Med output if it was previously switched off in High output.
Smart Sensing Function: With the Smart sensing function enabled and the lantern turned on in General mode, the lantern will automatically enter Mode A upon detecting movement within a 1.5-meter diameter range. The lantern will then turn off automatically after no movement is detected for 60 seconds within the sensing range.
Enable: With the lantern turned off, press and hold the switch for 3 seconds. The switch light ring will blink blue twice, and the lantern will activate in the Low output of Mode A. When the lantern is turned on in General mode, the switch light ring will display blue to indicate that the Smart sensing function is enabled.
Disable: With the lantern turned off, press and hold the switch for 3 seconds. The switch light ring will blink blue eight times to indicate that the Smart sensing function is disabled.
Note: the Smart sensing function is disabled by default. Turn off the lantern or disable the Smart sensing function when not in use to conserve battery power. With the Smart sensing function enabled and the lantern turned on in General mode, double click the switch to prioritize and enable the Delay-off function (indicated by a purple light ring); upon completion of the delay, the lantern will automatically return to the smart sensing state (indicated by a blue light ring when the lantern is turned on).
Battery Specifications
- Fenix ARB-LP1900 (dedicated battery, 3.8V): Recommended.
- Alkaline Battery (AAA, 1.5V) / Ni-MH Battery (AAA, 1.2V): Usable.
- Rechargeable Battery, Li-ion (10440, 3.7V): Banned.
Do not mix batteries of different brands, sizes, capacities or types. Only use the recommended or usable batteries mentioned in the manual. Using low-quality batteries or mishandling batteries (such as short-circuiting or overheating) could lead to combustion and jeopardize the safety of users and property. Using quality batteries with circuit protection will reduce the potential for combustion or explosion. It is recommended to use a Fenix ARB-LP1900 battery.
Battery Replacement
Pull up the hanging loop on the bottom of the lantern and unscrew it clockwise to open the battery cover. Insert the battery in accordance with the polarity marks, then screw the battery cover back on.
Charging
Open the anti-dust cap and plug the USB Type-C end of the charging cable into the charging port of the lantern. While charging, the switch light ring will progressively display green in a counterclockwise direction to indicate the charging status, turning green completely when the lantern is fully charged.
Note: all outputs can be turned on while charging. The Delay-off function and the Smart sensing function can be used while charging (the switch light ring will prioritize indicating charging status). With the lantern turned off, the normal charging time is approximately 2.5 hours from depleted to fully charged (this only works with a Fenix ARB-LP1900 battery — do not connect the charging cable to the lantern while using AAA batteries). Once charging is completed, be sure to unplug the charging cable and close the anti-dust cover to prevent the ingress of dust and debris. It is recommended to recharge the lantern between 50% and 25% battery level to prolong battery lifespan; immediate charging is required below 25%.
Battery Level Indication
Each time the lantern is turned on, the switch light ring will indicate the battery level for 3 seconds. With the lantern turned off, single click the switch to check the current battery level.
- Green light on: saturated 100% - 85%.
- Green light flashes: sufficient 85% - 50%.
- Red light on: poor 50% - 25%.
- Red light flashes: critical 25% - 1%.
This function only works with a Fenix ARB-LP1900 rechargeable battery.
Intelligent Overheat Protection
The lantern will accumulate a lot of heat when used for extended periods. When the lantern reaches a temperature of 50°C/122°F or above, it will automatically step down a few lumens to reduce the temperature. When the temperature drops below 50°C/122°F, the lantern will gradually recall the preset output level.
Low-Voltage Warning
When the voltage level drops below the preset level, the switch light ring blinks red 6 times every 1 second to remind users to recharge or replace the battery in a timely manner. To ensure normal use, the lantern will not turn off automatically and will work until the battery runs out.
Technical Parameters
- General Mode — High: Output 400 lumens, Runtime 5 hours 3 minutes*.
- General Mode — Med: Output 130 lumens, Runtime 15 hours.
- General Mode — Low: Output 30 lumens, Runtime 32 hours.
- General Mode — Moonlight: Output 1 lumen, Runtime 320 hours.
- Scene Mode — Red constant-on: Output 1.5 lumens, Runtime 40 hours.
- Scene Mode — Red flash: Output 1.5 lumens, Runtime 80 hours.
- Scene Mode — RGB chase: Output 12 lumens, Runtime 10 hours.
- Scene Mode — RGB flow: Output 10 lumens, Runtime 10 hours.
- Scene Mode — Stepless RGB: Output 25 lumens, Runtime 6 hours 41 minutes.
- Switch Light Ring (Red constant-on / Red flash / RGB chase / RGB flow): Output 1 lumen each.
- Beam Diameter: 15 meters.
- Impact Resistance: 1.5 meters.
- Waterproof: IP65.
Note: The above specifications are from the results produced by Fenix through its laboratory testing using one Fenix ARB-LP1900 battery 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 High output is measured in total of runtime including output at reduced levels due to temperature or protection mechanism in the design.
Usage and Maintenance
- Disassembling the sealed head can cause damage to the lantern and will void the warranty.
- Fully charge the lantern in time to ensure normal function the next time it is needed.
- Fenix recommends using an excellent quality battery.
- If the lantern will not be used for an extended period, remove the battery, or the lantern could be damaged by electrolyte leakage.
- Recharge a stored lantern every three months to maintain optimum performance of the battery.
- The lantern may flicker, shine intermittently or even fail to illuminate for the following reasons: poor battery level (recharge or replace the battery); or the contact or contact point of the battery or lantern is dirty (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 CL20R Pro camping lantern, ARB-LP1900 battery, USB Type-C charging cable, Spare O-ring, User manual, Warranty card.
