SILVA 37809 Trail Runner Free Lighting Headlamp User Guide



Trail Runner Free is equipped with Intelligent Light, which is a light distribution technology that combines a wide-angle floodlight with a long-reach spotlight. This unique light distribution, customized for running, gives the user peripheral and long-distance vision at the same time. For a runner – this results in less head movement, increased control, better balance, and more speed.

PRODUCT OVERVIEWThe Trail Runner Free packaging consists of the following parts:

  • headlamp unit
  • Free Technology™ headband
  • Hybrid battery case with built-in visibility light •
  • textile extension cord
  • 3 pcs AAA batteries
  • Quick guide


ADJUST THE HEADBANDThe elastic headband with anti-slip silicone on the inside is designed to give a comfortable fit and to stay in place at speed activities such as running. Adjust the headband by moving the 2 sliding buckles on each side to fit comfortably on your head.

INSERT THE BATTERIESOpen the hybrid battery case and insert three AAA batteries. Either Alkaline (Included), NiMH, or Lithium batteries can be used. Please note the battery polarity. As an option, a rechargeable Hybrid battery is available for purchase that fits perfectly in the Hybrid battery case.

Do not mix different brands of batteries. Do not mix batteries with different levels of discharge. If  you don’t intend to use the headlamp for a longer period, make sure you remove the batteries from the battery case before storing

CONNECTION TO HEADBANDConnect the Hybrid battery case to the buckle on the headband located on the left side. Included is also a textile extension cord that can be connected in between the headband buckle and the battery case if you want to carry your Hybrid battery case in your backpack, pocket, or similar.



On the side of the headlamp body, there is a push-button that controls all light modes. Each press on the button gives you the following light:

  1. Turns the headlamp ON in maximum brightness mode
  2. Switches to medium brightness mode
  3. Switches to minimum brightness mode
  4. Starts over from 1The flash mode, which is used to attract attention, is started from OFF mode by pressing and holding the button for more than 1 second. ”To turn OFF; press and hold the button for more than a second.

MAX MODE INDICATION:Trail Runner Free is equipped with a visual indication when you toggle from minimum brightness mode to maximum brightness mode. This is visible with a quick flash and is helpful to prevent unnecessary button presses.

REAR SAFETY LIGHTBuilt into the Hybrid battery case is a rear red light for extra visibility and safety. To turn this light  ON, open the Hybrid battery case, and slide the switch (located on the lower left side inside the case)  to the desired position (flashing red or red). BATTERY STATUS INDICATION When the headlamp is turned OFF a small LED is visible through the front lens of the headlamp to indicate the status of the batteries.  This indication will be on for 5 seconds.

  • Green –  Battery in good  condition
  • Red –Battery in poor condition


MAINTENANCETo make sure you get maximum performance from your headlamp, clean the lamp unit regularly with a damp cloth.


Weight: (headlamp including headband): 55 grams
Weight (battery case + 3 x AAA batteries): 62 grams
Battery type included: 3 x AAA Alkaline
Light distance (Max/Med/Min): 80 m/50 m/20 m
Lumen (Max/Med/Min): 400/200/50 lm
Burn time +20 ºC:
Max/Med/Min: 25 h/50 h/70 h
Burn time -5 ºC:
Max/Med/Min: 10 h/20 h/40 h
Water resistance: IPX5
Operative temperature range: -20ºC – +60ºC


Headlamps and batteries should be recycled and must not be thrown in the regular trash. Dispose of these items in accordance with applicable local regulations.


Silva warrants that, for a period of two (2) years*, your Silva product will be substantially free of defects in materials and workmanship under normal use. Silva’s liability under this warranty is limited to repairing or replacing the product.   This limited warranty extends only to the original purchaser. If the product proves defective during the warranty period please contact the original point of purchase.  Make sure to have your proof of purchase hand when returning the product. Returns can not reprocess without the original proof of purchase. This warranty does not apply if the product has been altered, not been installed, operated, repaired, or maintained in accordance with instructions supplied by Silva, or has been subjected to abnormal physical or electrical stress, misuse, negligence, or accident. Neither does the warranty cover normal wear and tear. Silva is not responsible for any consequences, direct or direct, or damage resultant from the use of this product. In no event, ill Silva’s liability exceeds the amount paid by you for the product. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.  This warranty is valid and may be processed only in the country of purchase.

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* Batteries: one (1) yearFor more information please visit


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