Wurkkos TS21 Manual

Introduction

Wurkkos TS21 is an extremely bright, powerful, and versatile EDC flashlight, designed for home and professional use as well as outdoor activities like camping, hiking or fishing. It is powered by a single 21700 Li-ion rechargeable battery. For ultimate convenience it can be recharged via USB-C.
TS21 delivers a maximum output of up to 3500 lumens (when in 6500K, the lower the color temperature value, the lower the brightness value)with a maximum range of 217 meters. Its side switch controls all functions: power on/off, battery indicator, output level and change of mode groups. The sophisticated Andúril 2.0 provides a both user friendly and highly flexible interaction as well as simple one-hand operation.

Technical Parameters

Specifications

• Emitter: 3x SST20
• Operating voltage: 2.8V – 4.2V
• Battery options: 1x 21700
• Dimension: 113.4mm (length) x28mm (head diameter)
• Weight: 79 grams (without battery)
• Flashlight body: Aerospace grade 6061 grade aluminum alloy, CNC manufactured to hard-anodized to military grade specification type III, antiabrasive finish to get solid built body, anti-crash geometry and better heat exchange.
• Water resistance i.a.w. IPX-8
• Mode Memory: memorizes the last brightness level used in the general modes (except Strobe)
• Low Voltage Protection: If the battery's voltage is lower than 2.8V, TS21 steps down automatically to avoid battery damage by over discharge. At 2.7V the flashlight will turn off automatically.

• Advanced Temperature Regulation (ATR) technology: By default ATR will reduce the brightness level automatically when the driver temperature reaches 45°C to prevent overheating. You can set a different temperature threshold by following the thermal configuration guideline.
• Firmware: TS21 uses open source software called Andúril 2.0, distributed under the terms of the GPL v3. The source code is available from http://tiny.cc/TKAnduril

Quick Start

• Unscrew the tailcap to insert one 21700 battery with the anode side (+) towards the head, then screw the tailcap back on. Do not over-tighten the tailcap. When you change the battery the flashlight always starts at the regulated level (1x7135).
• All functions are controlled using the electronic side switch. Basic usage is very simple. Click for on/off, hold to change brightness. Release the button and hold again to change brightness in the other direction.
• In this manual, click is press the switch and release, while hold is press the switch until you get the desired result, then release. Often the last of a series of button presses is a hold, so click, click, hold, is to depress the switch and release twice, and depress a third time until the desired result. This would be the same as 3H in the User Interface diagram. For multiple clicks, they need to be within a couple tenths of a second. Not lighting fast, but fairly quick.
• From OFF, hold the button to turn it on in the lowest level. TS21's output will ramp up from a very low level to maximum output. Release the button when the desired light output level is reached. The full ramp takes about 3s. Use a single-click at any time to turn TS21 OFF. The Operation Instructions section of this manual describes all the features of TS21.
• While ramping TS21 blinks to indicate the lowest brightness level (subsequently called FLOOR in this manual) and highest brightness level (subsequently called CEILING in this manual).
• TURBO is meant for short bursts, only. After around a minute you may notice it dims slowly down. Use it only for short periods instead of relying on thermal regulation to prevent heat damage. Full turbo is powerful enough to start fires in just a few seconds, especially when aimed at dark-colored materials.

Integrated Charger

TS21 uses an integrated USB-C charging port for convenient recharging of its battery. Please connect it with a quality USB-C cable and use a USB power adapter with 5V 3A. While charging the LED power indicator flashes blue. Once finished the indicator will turn blue to indicate a full battery.

Operation Instructions

Simple UI (default)

By default, the light uses a simple UI. This is useful if you lend the light to someone else, or if you just don't want to bother with any crazy disco modes.
Simple UI has all the basic functions needed to work as a flashlight, but the minimum and
maximum brightness are limited to make it safer, and any complex or advanced functions are blocked.

Functions available in Simple UI include:

• 1C: On / off
• 1H: Ramp up (or down, if button was released less than a second ago)
• 2H: If light is on: ramp down
  If light is off: momentary high mode
• 2C: Double click to go to / from highest safe level
• 3C: Toggle between SMOOTH RAMPING and STEPPED RAMPING (while light is on)
• 4C: Lockout mode.

Some other modes and functions are available too. When the light is off, these are the options:

• 3C: Battery check mode. (displays voltage once, then turns off)
• 4C: Lockout mode.
• 10H: Switch to Advanced UI.
• 15C or more: Version check.

In Lockout mode with Simple UI, there are a few functions:

• 1H: Momentary moon
• 2H: Momentary low
• 4C: Unlock and turn on
• 4H: Unlock and turn on at low level
• 5C: Unlock and turn on at high level

To change between Simple UI and Advanced UI, turn the light off and then do one of these:
In Simple UI:

• 10H: Go to Advanced UI.

In Advanced UI:

• 10C: Go to Simple UI.
• 10H: Configure Simple UI.

If you get lost, or if you want to auto-calibrate the temperature sensor, do a Factory Reset. The process for this is:

• Loosen body tube
• Hold button
• Tighten body tube
• Keep holding button for about 4s

The light should flicker while getting brighter, then briefly burst to full power. Hold until it reaches full power to do a reset, or let go of the button early to abort.

Advanced UI

Default UI: Smooth ramping
This UI provides smooth dimming of the light output between FLOOR (lowest level) and CEILING (highest level), with an easily accessible 100% TURBO mode.
Switch to STEPPED RAMP: click 3 times while the light is on( If you use 3 clicks from OFF you engage battery check)
Turn the light ON: single-click the button, the TS21 turns ON using the previously used light output level (MEM)
Ramp up&down: hold the button to make it brighter, release button briefly and hold again to make it dimmer.
Turbo: no matter the light is on or off, double click activate Turbo for max brightness.
MOON: press & hold the switch, it turns on at the moonlight(FLOOR level), it makes a subtle "blink" to provide a timing hint if you want to stay there. If you keep holding, it ramps up
Battery check: while light is OFF, triple-click it shows the voltage of battery (3 blinks, a short pause, then 8 blinks would indicate 3.8 V)
Turn OFF: single-click

UI: Stepped ramping
Using this UI the output does not ramp, it steps from one mode to the next using hold. The firmware tries to optimize these steps as equally-spaced on a cuberoot curve (considered an ideal mode-spacing by many).
All operations are the same as in smooth ramping Switch to SMOOTH RAMP: when the flashlight is ON, Three clicks switch it. (Hint: If you use 3 clicks from OFF you engage battery check)

UI: Momentary mode
5 clicks from OFF to enter Momentary mode
To exit this mode, physically disconnect power (unscrew the light). This mode locks the flashlight into a single-mode interface where the LEDs are only on when the button is held down. It is intended for Morse code and other signaling tasks. Brightness is the last-ramped level, so adjust that before entering momentary mode.

UI: Electronic Lockout
4 clicks form OFF to disable the light, same to re- enable the flashlight.
Lockout makes the light safe to carry in a pocket or a bag or anywhere else it might be pressed by accident. Lockout doubles also as a momentary moonlight mode, so the user can do quick tasks without having to unlock the light. It uses the FLOOR of the current ramp.

Blinkies & Strobes
Two groups worth of blinkies are included. To reach Blinkies, do "click click click" from OFF. To reach Strobes, do "click click hold" from OFF. To change to the next blink use a double-click. These include:
Blinky:
(starts always at battcheck) from OFF: "click click click" to BattCheck: Shows the remaining charge in volts and tenths. E.g. 4 blinks, then pause, 1 blink are 4.1 Volt. A "zero" is represented by a very quick blink.
Sunset: Starts at a low level, then slowly dims down to moon for an hour, then shuts off. It is intended for use when going to bed.
Beacon: Beacon mode uses the last ramped level for its brightness. You must adjust the brightness before you turn beacon on. It blinks at a slow speed: Once every N seconds at the last-ramped level. N is configurable in beacon config mode: Click 4 times to enter beacon config mode, wait for the light to stutter, then click to enter the number of seconds per blink. For example, to do a 10second alpine beacon, click 10 times. (Hint: If you want faster blinks per second use party strobe mode and set it to three blinks per second or more)
TempCheck: Blinks out the current temperature in degrees C. and optionally configure settings for thermal regulation. E.g. 3 blinks, then pause, 4 blink are 34 degrees Celsius. A "zero" is represented by a very quick blink. This number should be pretty close to what a real thermometer says. If not, it would be a good idea to click 4 times to enter thermal config mode, and calibrate the sensor.

Strobes:
(remembers the last-used mode) from OFF: "click click hold" which means click three times, but hold the third click for a moment. To change to the next strobe use a double-click.
To set adjustments you can use:

• Hold: Increase brightness, or strobe faster. (except lightning)
• Click, hold: Reduces brightness, or strobe slower. (except lightning)

Candle mode:
Simulates a flickering candle or fireplace, until you switch it OFF. Or you add timer for 30min: Each triple click adds 30 min including a burn down simulation at the end. Candle mode timer can go for up to 4.5 hour. If you buy diffuser of TS21 separately, you can turn the light into a candle.

Bike flasher:
Steady output with a "stutter" once per second. Designed to be more visible than a normal ramping mode, but otherwise works mostly the same. Adjustable brightness.

Party strobe:
Motion-freezing strobe. Can be used to freeze spinning fans and falling water.
Adjustable speed.

Tactical strobe:
Bright, disorienting strobe light. Can be used to irritate people. Adjustable speed, and the duty cycle is always 33%.

Lightning storm mode:
Flashes at random brightness and random speed to simulate lightning strikes during a busy lightning storm. Do not look directly at the flashlight when this mode is running, because it may suddenly go to full power without warning.

Thermal configuration
Look at a thermometer to check the current room temperature. Let us assume it says 21 Celsius.
Turn the light off and wait for its temperature to settle to room temperature. Go to TempCheck (from OFF: "Click Click Click" Ascend with double-clicks three times) When you are in TempCheck, then click 4 times to enter thermal config mode, and calibrate the sensor.
Thermal config mode has two settings:

1. Current temperature Calibration(blink once and flashing). Click once per degree C to calibrate the sensor. For our example, the ambient temperature is 21 C = click 21 times.
2. Temperature limit(blink twice and flashing). This sets the maximum temperature the light can reach before it will start doing thermal regulation to keep itself from overheating. Click once per degree C above 30. For example, to set the limit to 50 C, click 20 times. The default is 45 C (15 clicks).

Hint: If you don't click, the flashlight will leave the value unchanged. The lowest value the user can set is 31 C, by clicking once.

Switch LED
The switch LED can be configured to do different things while the main emitters are off. There is one mode for the regular OFF mode, and another mode for LOCKOUT mode. This allows the user to see at a glance whether the light is locked.
Switch LED modes typically include: Off - Low - High - Blinking
To configure the LEDs, go to the mode you want to configure and then click the button a few times:

• While flashlight is OFF, 7 clicks to change switch led from Low-High-BlinkingOFF
• While flashlight is LOCKOUT, 3 clicks to change switch led from Blinking-OFFLow-High.

The switch LED stays on while the flashlight is on, the switch led goes to High while flashlight goes to higher lumens, the switch led goes to Low while flashlight goes to lower lumens.

Protection Features
Some features which aren't visible on the diagram: Andúril includes low voltage protection (LVP) and thermal regulation. LVP makes the light step down to a lower level when the battery is low, and if the light is already at the lowest level, it shuts itself off.
This activates at 2.8V. LVP adjustments happen suddenly, in large steps.
Thermal regulation attempts to keeps the light from overheating and otherwise adjusts output to stay as close as possible to the user-configured temperature limit. Thermal adjustments happen gradually, in steps so small they are difficult for humans to perceive. It ramps smoothly across 512 internal steps (from 1x7135 to full power) to adjust output while it searches for the highest level it can maintain without overheating.

FAQs

You tried to configure your flashlight and now it is only working if you press the button.
When you press 4x from OFF you lock out TS21. Press four times again to unlock. When you want to configure TS21 it must be ON, then click four times.

If I turn on using moon shortcut, it won't memorize moon.
In short: the TS21 has only memory if you ramp to a value.
It doesn't memorize the floor, ceiling, or turbo levels when they're reached by a shortcut. This is on purpose, because people didn't like losing their memorized level after using moon or turbo. To make it remember moon, the user must ramp to it... typically, by ramping up a little then back down. Basically, it behaves that way because that's what people asked for.

Troubleshooting and Maintenance

• Disassembling the sealed head can damage the flashlight and voids the warranty.
• Wurkkos Ltd. recommends using high-quality brand batteries. Damage by defective batteries void the warranty.
• Remove the battery if the flashlight will not be used for an extended period of time.
• To prevent self-discharge or accidental activation during storage or transportation, unscrew the tailcap by half a turn or remove battery.
• Every 6 months threads should be wiped with a clean cloth followed by a thin layer of silicone grease.
• To maintain a proper level of waterproofness, replace worn-out o-rings with an approved spare (2 pieces are shipped with initial order).

Troubleshooting: Clean battery contacts regularly as dirty contacts may impair the performance of the flashlight. If you experience problems (flicker, shine intermittently or failure to turn on) the following root causes and solutions should be tried:
Reason A: The battery needs replacement (Battery voltage is below 2.7V).
Solution: Replace battery with an approved type of fully charged battery.
Reason B: Threads, PCB board contact or other contacts are dirty. Solutions: Please clean the contact points with a cotton swab soaked in rubbing alcohol.
Reason C: The flashlight will not turn on upon first use.
Solution: Please do not forget to remove the insulation sticker from the battery on first use.
Please contact us if you have any questions. If your product is defective please contact us for refund or replacement within warranty period.

Battery Specifications

Safety Precautions

• Pay close attention to the proper installation of the battery. Incorrect installation could result in short circuit when the tailcap is tightened, risking fire and causing damage to TS21. Always check at least three times that the negative end of the battery is visible at the tube's end before screwing the tailcap back on.
• Due to the high energy density of lithium-ion batteries hazardous conditions are created when a cell is short-circuited or damaged. Always treat batteries carefully and properly dispose of any damaged batteries.
• Connect the included USB-C charging cable to a USB charger and recharge TS21 when the low voltage indication is given. This indication is an uncommanded drop in the light's brightness, or a mode change and a low output level. Eventually the light output will extinguish. The battery voltage may be measured using the BattCheck feature.
• TS21 is a very high-intensity flashlight. Never point it directly at a person, animal, or moving vehicles Please do not allow children to play with it. Strobe mode may cause seizure in persons with photosensitive epilepsy.
• When running at higher output levels the head of the flashlight will heat up quickly. This is normal. In warmer ambient conditions this temperature may easily exceed 45°C depending on your settings, so please take the necessary precautions when handling TS21.
• Avoid hitting or dropping the flashlight. Be careful when using maximum brightness at high custom temperature settings in order to avoid burning your hands.