HC35Next Generation 21700 L-Shaped Headlamp· Powered by a 21700 Battery· Ultra High Performance· Patented Power Indicator
Features
- Utilizes 4 x CREE XP-G3 S3 LEDs for a max output of 2,700 lumens
- Lightweight and rigid CNC machined body for an excellent cooling performance
- Utilizes a bead surface total reflective optic lens for uniform and soft light
- Maximum peak beam intensity of 4,500cd and maximum throw of 134 meters
- Powered by a 21700 high capacity Li-ion battery while compatible with 18650 and CR123 batteries, to provide a runtime up to 1,200 hours
- One switch controls 5 brightness levels and 3 special modes · Built-in Li-ion battery charging circuit with a Micro-USB port
- NITECORE 21700 rechargeable Li-ion battery (NL2140HP 4,000mAh) included
- STROBE Mode uses randomly changing frequencies for stronger dizzying effects
- The power indicator beneath the switch indicates the remaining battery power (Patent No. ZL201220057767.4)
- The power indicator can also display the battery voltage (±0.1V)
- Wide range flood optic system of 100° illumination angle specially designed for outdoor applications
- Incorporated Advanced Temperature Regulation (ATR) module (Patent No. ZL201510534543.6)
- Specially designed lightweight and breathable headband included
- Electronic reverse polarity protection
- Constructed from aero grade aluminum alloy
- HA III military grade hard-anodized finish · Rating in accordance with IP68 (2 meters submersible)
- Impact-resistant to 1 meter · Magnetic tail cap withstand capability
Specifications
Length: 128.2mm (5.05″)Head Dimensions: 28.85mm×31.77mm (1.14″×1.25″)Tube Diameter: 26mm (1.02″)Tail Diameter: 28.3mm (1.11″)Weight: 138.5g (4.89oz)(Bracket and Headband Included, Battery Not Included) 100g (3.53oz) (Bracket, Headband and Battery Not Included)
Accessories
NITECORE 21700 Rechargeable Li-ion Battery (NL2140HP 4,000mAh), Spare O-ring, Clip, Headband, Bracket, 18650/CR123 Battery Magazine, USB Charging Cable, Lanyard
Battery Options
| Type | NominalVoltage | Compatibility | |
| NITECORE NL2140HP 4,000mAh | 21700 | 3.6V | Y (Recommended and Rechargeable) |
| 21700 Rechargeable Li-ion Battery(Output Over 8A) | 21700 | 3.6V/3.7V | Y (Recommended and Rechargeable) |
| 18650 Rechargeable Li-ion Battery(Output Over 8A) | 18650 | 3.6V/3.7V | Y (Compatible and Rechargeable) |
| Primary Lithium Battery | CR123 | 3V | Y (Compatible but Not Rechargeable) |
| Rechargeable Li-ion Battery | RCR123 | 3.6V/3.7V | Y (Compatible but Not Rechargeable) |
| 21700 Rechargeable Li-ion Battery(Output Below 8A) | 21700 | 3.6V/3.7V | N (Incompatible) |
| 18650 Rechargeable Li-ion Battery(Output Below 8A) | 18650 | 3.6V/3.7V | N (Incompatible) |
Technical Data
| TURBO | HIGH | MID | LOW | ULTRALOW | STROBE | BEACON | SOS | |
 |
2,700Lumens | 800Lumens | 270Lumens | 40Lumens | 1Lumen | 2,700Lumens | 2,700Lumens | 2,700Lumens |
 |
*45min | 3h | 8h 15min | 52h | 1,200h | |||
 |
134m | 73m | 40m | 14m | 3m | |||
 |
4,500cd | 1,330cd | 400cd | 52cd | 2cd | |||
 |
lm (Impact Resistance) | |||||||
 |
IP68, 2m (Waterproof and Submersible) |
Note: The stated data is measured in accordance with the international flashlight testing standards ANSI/NEMA FL1, using 1 x 21700 Li-ion battery (5,000mAh) under laboratory conditions. The data may vary in real-world use due to different battery usage or environmental conditions.* The runtime for TURBO mode is tested without the temperature regulation.* TURBO Availability: The TURBO level is only accessible when using a 21700/18650 rechargeable Li-ion battery with an output over 8A. It is inaccessible when using CR123/RCR123 batteries.
Battery Installation
HC35
Operating InstructionsBattery InstallationInsert the battery(s) as illustrated and screw to tighten the tail cap.Note: After the battery insertion, the power indicator beneath the switch will flash to indicate the battery voltage. Please refer to the “Power Indication” section of this manual for more details.
Warnings:
- Ensure the battery(s) is/are inserted with the positive end towards the head. The product will notwork if the battery(s) is/are incorrectly inserted.
- Please use the battery magazine when using 1 x 18650 / 2 x CR123 batteries to avoid battery rattling and to ensure a stable contact.
- CAUTION! Possible dangerous radiation! Don’t look into the light! Maybe dangerous for your eyes.
- When the product is kept in a backpack or left unused for prolonged time, please remove all batteries to prevent accidental activation or battery leakage.
- DO NOT submerge the light into any liquid when it is hot. Doing so may cause irreparable damage to the light due to the difference of air pressure inside and outside of the tube. 6. The product contains strong magnetic components. DO NOT put it close to objects that tend to suffer from magnetic interference.
On / Off
On: When the light is off, long press the Power Button for 1 second to turn it on.Off: When the light is on, long press the Power Button for 1 second to turn it off.Note: The HC35 has mode memory. When reactivated, the headlamp will automatically access the previous memorized brightness level.
Brightness LevelsWhen the light is on, short press the Power Button to cycle through “ULTRALOW LOW MID HIGH TURBO”.
Direct Access to ULTRALOW / TURBOULTRALOW: When the light is off, short press the Power Button to directly access ULTRALOW.TURBO: When the light is off, long press the Power Button for over 1 second to directly accessTURBO after accessing the memorized brightness level. (Both direct accesses will not trigger the mode memory.)
Special Modes (STROBE / BEACON / SOS)
- When the light is off, double press the Power Button to access the STROBE Mode.
- When the STROBE Mode is on, short press the Power Button to cycle through the following special modes: BEACON SOS STROBE.
- When one of the special modes is on, long-press the Power Button for 1 second to exit special modes and turn off the light.
Charging Function
The HC35 is equipped with an intelligent charging system. As illustrated, use the USB cable to connect an external power supply (e.g. a USB adapter, a computer, or other USB charging devices) to the USB port located on the head to begin the charging process.
- During the charging process, the charging indicator will flash slowly to inform the user.
- When the battery is fully charged, the HC35 will cease the charging process and the charging indicator will become steadily turned on to inform the user.
- The charging time for a 21700 Li-ion battery (5,000mAh) is approx. 3h 15min. (Charged via the 5V/2A adapter)
Power Indication
When the battery is inserted and the tail cap is tightened without connection to a power supply, the power indicator will flash to show the battery voltage (±0.1V). For example, when the battery voltage is at 4.2V, the power indicator will flash 4 times followed by a 1.5-second pause and 2 more flashes. Different voltages represent the corresponding remaining battery power levels:
Note:
- When using two CR123/RCR123 in series, the indicator will show the average voltage between the two batteries.
- If it fails to display the voltage correctly, please press and hold the Power Button for over 1 second with the tail cap loosened to ensure the headlamp is totally power off, and then tighten the tail cap again.
ATR (Advanced Temperature Regulation)
The integrated ATR technology regulates the output of the HC35 according to the working condition and ambient environment to maintain the optimal performance.
Changing Batteries
The batteries should be replaced when the power indicator flashes quickly and continuously and the output appears to be dim or the headlamp becomes unresponsive due to low power.
Maintenance
Every 6 months, threads should be wiped with a clean cloth followed by a thin coating of siliconbased lubricant.
Warranty Service
All NITECORE® products are warranted for quality. Any DOA / defective product can be exchanged for a replacement through a local distributor/dealer within 15 days of purchase. After that, all defective/malfunctioning NITECORE® products can be repaired free of charge within 60 months from the date of purchase. Beyond 60 months, a limited warranty applies, covering the cost of labor and maintenance, but not the cost of accessories or replacement parts.The warranty will be nullified if 1. the product(s) is/are broken down, reconstructed and/or modified by unauthorizedparties; 2. the product(s) is/are damaged due to improper use; (e.g. reversed polarity installation) 3. the product(s) is/are damaged due to battery leakage.For the latest information on NITECORE® products and services, please contact a local NITECORE® distributor or send an email to All images, text, and statements specified herein this user manual are for reference purposes only. Should any discrepancy occur between this manual and information specified on www.nitecore.com, Sysmax Innovations Co., Ltd. reserves the right to interpret and amend the content of this document at any time without prior notice.
SYSMAX Innovations Co., Ltd.TEL: +86-20-83862000FAX: +86-20-83882723E-mail: [email protected]Web: www.nitecore.comAddress Rm 2601-06, Central Tower, No.5 Xiancun Road, Tianhe District, Guangzhou,510623, Guangdong, China
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HC03033520
References
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