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Product Details

Sofirn C8F (21700) flashlight is a powerful flashlight, with Advanced Temperature Regulation (ATR) technology, much more brightness, battery power indicator and improved user interface.

Sofirn C8F (21700) is a powerful, versatile flashlight designed for home, EDC or outdoor activities like camping, hiking, fishing or hunting. It utilizes a single 21700 Li-ion rechargeable battery or single 18650 Li-ion rechargeable battery. It features four mode groups: Group 1 with 1 mode; Group 2 with 3 modes; Group 3 with 4 modes and Group 4 with ramping mode; and all with hidden Moonlight; hidden Strobe.

Sofirn C8F (21700) delivers maximum output of 3,500 lumens, throws maximum range of 299 meters (327 yards). Tail switch controls Power on / off; Side switch controls other functions: changing brightness levels or mode groups. It provides an improved, user friendly interface and simple one-hand operation.


※ 3* CREE XP-L LED with a lifespan of 50,000 hours

※ Working Voltage: 2.8V-4.2V

※ Battery Options: One 21700 Li-ion battery or One 18650 Li-ion battery(Suggest 21700 battery)

※ Dimension: 149mm (length)*44.6mm (head diameter)

※ Weight: 200±2 gram (without battery)

※ Flashlight body: Aerospace grade 6061 grade aluminum alloy, CNC manufactured to hard-anodized anti-abrasive finish to get solid built body, anti-crash geometry and better heat exchange.

※ Toughened mineral glass lens with AR coating.

※ IPX8 Waterproof (submersion up to a maximum depth of 1.5 m underwater for up to 30 minutes).

※ Reverse polarity protection from improper battery installation.

※ Advanced Temperature Regulation (ATR) technology: ATR will adjust the brightness level automatically when the driver temperature reaches 50℃ (122 °F) to prevent overheating.

※ Power Indicator:

The LED indicator on side switch blinks in green for 5 seconds when turns on.

LED indicator is Steady Green if the voltage is between 3.4 volt to 4.2 volt.

LED indicator is flashing Red if the voltage is between 3 volt to 3.4 volt.

LED indicator is rapid flashing Red if the voltage is between 2.8 volt to 3 volt.

The flashlight turns off automatically if the voltage is lower than 2.8 volt. Please insert new battery.


Operation Instruction:

The tactical tail switch controls power ON/ Off.

The side switch controls other flashlight functions as follows:

Group 1/ Group 2/ Group 3:

· Short click the side switch to cycle through modes:
Eco→ Low → Mid→ High→ Eco→ Low→etc.

· Press the side switch for 0.5 seconds to enter Standby (main led is off).

4 Four fast clicks convert from one group to the other, 2 blinks confirm the change.

Group 4: Ramping

Press and hold side switch to ramp up or down. Ramping changes direction when press button again within 1.5 seconds, same direction when ramping again after 1.5 seconds. The light blinks when it reaches Moonlight or Turbo. When the light is on, click to Standby.

No matter in which group:

· Hold and press the side switch for 1 second to enter Moonlight from Standby, one click returns to Standby.

· Double clicks to activate Turbo mode from On / Standby, one click returns to the last brightness used or Standby.

· Triple clicks to activate Strobe mode from On / Standby, one click returns to the last brightness used or Standby.

Memory Function: The last brightness used can be memorized when convert from Group to Group. When it goes back to the group, it starts from the remembered brightness level.


Press and hold the side switch for 0.5 seconds to enter Standby (except in Ramping Mode).

Click the tail switch to Cut Off. Please click both tail switch and the side switch to turn on if the light was in Standby last time.


1:without battery: including 1 flashlight, 1 lanyard, 1 user manual, 2 replace o rings

2: with battery kit: including 1 flashlight, 1 lanyard, 1 21700 battery, 1 USB charger, 1 user manual, 2 replace o rings

Item Specifics
Item Type:
Lighting Distance:
200-500 m
Support Dimmer:
Stepless dimming
> 350
Flashlight Type:
outdoor lighting
Switch Mode:
Battery Type:
Body Material:
Aluminum Alloy
Light Source:
LED Bulbs
Focal Length:
Not Applicable
Shock Resistant,Hard Light
Model Number:
Brand Name:
Model of LED Beads:
Cree XPL
Shipping & Payment


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of jonaki (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Customer Reviews
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1 Jun 2019

Super bright flashlight, good quality, fast delevery.

1 Jun 2019

I ordered a flashlight with a battery. The item did not come in full configuration-without battery and adapter for 18650. The battery was seized at the belgian customs, apparently and the adapter along with him, too, someone prikarmanil. Opened the dispute and the money was returned for the missing components within 2 weeks. The store is well done, responded immediately after the presentation of the claim. Very disappointed that the delivery of the goods caused trouble to me and the seller.

31 May 2019

Good flashlight. everything is in the traditions of sofirn .. The box is nameless, but packed all well, got intact. the quality of the tool on the Russian, of course, unsurpassed. do not expect anything to understand the management of the modes of the flashlight. The light from the lantern is comparable to sofirn cp-33. But given that sr-33 has 21650 batteries, not 21700 and smaller dimensions, for me sp-33 is preferable ..

30 May 2019

Everything is perfect and has great power, gives a lot of light for how small it is.

30 May 2019

The order was made on 10.05,it arrived on 29.05,the parcel was intact and the product as described.Thank you.Thumbs up for store.

30 May 2019

Well done. Seven days delivery. Excellent product

10 May 2019

Good lantern, the beam can be seen even in daylight on the opposite wall, from the stream of light hand heat

6 May 2019

The lantern is gorgeous. Fully corresponds to the description. To get acquainted with the control, you can see the rollers on youtube. it shines very brightly, it works adequately and on the battery 18650

25 Jan 2019

This is not a flashlight, but a gun!!! For its size is very good! Met all my expectations. Viewed a lot of reviews and videos in youtube, this is one of the best lanterns of its kind! Made sure of it personally. Before that, he held in his hands other flashlights of this type. I got to tver in two weeks. I will not insist, but i recommend to purchase unequivocally.

20 Dec 2018

A decent lantern, like many here buyers i have already collected probably all top lanterns from sofirn and this locked collection, now it's time to aim at the 10000 lumens thread... in this store all points are collected))) i will join all the described positive reviews there is nothing more to add here. Took on shares 11.11. With the coupon was a little cheaper than 1900r, i recommend!!!

Super hot! Several others have checked this out in the last few hours

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