Streamlight SL-20L Rechargeable LED Aluminum Flashlight
Streamlight SL-20L Rechargeable LED Aluminum Flashlight
Streamlight SL-20L Rechargeable LED Aluminum Flashlight

Streamlight SL-20L Rechargeable LED Aluminum Flashlight

MSRP: $177.76

Full-sized, full-feature aluminum flashlight with C4 LED technology that delivers a 490 meter beam!


  • Deep-dish parabolic reflector produces a tight beam with optimum peripheral illumination
  • C4 LED technology, with a 50,000 hour lifetime
  • Select high, medium, low or strobe modes with multi-function, push-button switch
  • High 60,000 candela peak beam intensity, 350 Lumens, 2 hour runtime
  • Medium 27,000 candela peak beam intensity, 160 lumens, 4 hour runtime
  • Low 1,000 candela peak beam intensity, 10 lumens, 50 hour runtime
  • Strobe 4 hour runtime
  • Illuminated switch housing shows charge status
  • Optimized electronics provide regulated intensity throughout battery charge
  • Available with either NiCd or NiMH system configurations
  • NiCd battery/NiMH battery rechargeable up to 1,000 times; fully recharges in 7 hours
  • Fits SL series charger-holders, available with 100V, 120V, 230V, 240V AC or 12V DC charge cords
  • Anodized machined aluminum construction with knurled barrel for a sure grip
  • IPX4/water resistant.
  • Unbreakable polycarbonate lens with scratch-resistant coating
  • 2 meter impact resistance tested
  • Serialized for positive identification
  • 13.1" (33.3 cm)
  • 1.7 lbs. (.77 kg)
  • Limited Lifetime Warranty
  • Assembled in USA

  • Specifications:

  • Lumens: 10.00 - 350.00
  • Candela: 1000 - 60000
  • Runtime: 2.00 - 50.00 hours
  • Range of Light / Distance: 490 meters
  • Battery Styles: Rechargeable
  • Battery Types: Nickel-Cadmium, Nicke-metal hydride
  • Length: 13.100 inches (33.27 centimeters)
  • Weight: 1.700 ounces (48.19 grams)
  • Colors: Black
  • Battery Quantity: 1
  • Reviews
    11 Reviews
    91% (10)
    9% (1)
    0% (0)
    0% (0)
    0% (0)
    100% Recommend this product (11 of 11 responses)
    By Mike
    Phelan, CA
    May 25, 2017
    Started using SL 20 in the early 80's for patrol, was using dept issued Mag Light. The Streamlight out performed the Mag Light. The New LED version is awesome, I live in a rural area with no street lights and few residents. This light will light up a room and light up the intersection approx. 700' away.
    By Eugene
    New Jersey
    July 22, 2016
    Streamlight SL-20L Rechargeable LED Flashlight
    Found a nice rechargeable LED flashlight that lasts for several hours at scenes.
    ProsPrice, LED, rechargeable and long lasting run time.
    By Pat
    March 13, 2016
    Solid for police work
    Excellent light. Long life
    By Fred
    Naples, FL
    January 13, 2016
    Great Light
    Great light. works like a charm. Only thing is that the end cap does not fit flush with the body.
    ConsEnd cap does not fit flush with the body.
    By Sean
    April 21, 2015
    Great light
    When I first began my career on grave shift I was using the SL 20. I liked the durability of the light and if a part did fail, it was easily replaced. When Streamlight first tried the LED technology I wasn't very impressed with that product. Since I picked up this light, I've enjoyed having a heavier duty light with the new LED technology.
    ProsDurability and the charger does not need to be replaced if you own the original light.
    ConsIf this a new light for you, the size and weight.
    By Bill Jarrell
    Covington, WA
    April 17, 2015
    So far so good. I just got the flashlight and I haven't had much of a chance to use it. The beam is very bright as I shined it to the top of a large pine tree at night, and it made it illuminate to where I could have identified anything. I am looking forward to using it more throughout the year.
    ProsThe lumens are wonderful.
    ConsThe switch you have to hold in to make it dim. May just have to get used to it.
    By Erick
    L.A. Calif
    October 28, 2014
    For a "full size" flashlight
    I found that even though most, if not all flashlights, have drastically reduced in size. This Streamlight model still has a place, despite its size. It has a bright output, and focused beam, along with being durable. A type of light that could be applied towards many uses, including which, not easily being lost, misplaced or "pocketed".
    ProsBright focused beam, light, durable, not easily lost, or misplaced. The current sizes of flashlights are great, but when one has a need, or desire, for that full size light. You cant go wrong.
    ConsNot really none.
    By Martin
    May 13, 2014
    Classic Light w/ LED Technology
    Same great light with an upgrade feature
    ProsSolid structure
    By Mike M
    New Jersey
    March 7, 2014
    Still one of the best light's on the market. I have one for work, one for the truck and one for the house. Can't go wrong with this light
    By five o
    Dallas tx
    December 20, 2013
    Bright light
    I use this light at work and it is the extremely bright. It even shines through very dark tint on windows.
    By Bill
    Madison, WI
    September 3, 2013
    Great duty light
    I work in law enforcement and this light is something that I always carry at night.
    Pros480m beam
    Conssize & weight
    13 Questions & 13 Answers
    from San Diego asked:
    October 19, 2016
    Will the older style SL-20X charger work with this flashlight??
    1 Answers
    The charges will work but may take a bit longer to charge the new LED light.
    Customer Service
    on October 19, 2016

    from Yakima, WA asked:
    April 13, 2016
    I have the charger for the SL-20LP plastic version. Will that charger work for the SL-20L aluminum version?
    1 Answers
    The chargers are the same.
    Customer Service
    on April 14, 2016

    from WA asked:
    January 23, 2015
    THe SL 20 L, I have the original SL and have the charger as well. Is the old, DC charger compatabile with the new light?
    1 Answers
    Yes streamlight has not updated the charger at all for this item so your current charger will work for this light as well as long as they are the same style.
    Customer Service
    on January 26, 2015

    James Johnston
    from Orange County California asked:
    January 4, 2015
    When you purchase this product as listed, does it come with a wall charger, as well as a cigerette lighter charger or do you have to purchase those items seperately?
    1 Answers
    Under the drop down menu you do have the option to order this light with just the light and no charger options or you can order this light with the chargers as well for an additional cost.
    Customer Service
    on January 5, 2015

    from Barrington, RI PD asked:
    November 3, 2014
    I have an extra SL20X battery, will it fit in the SL-20L? battery says streamlight model SL-20x P/N 20170 Battery store gave me this for a rechargeable Maglite and it doesn't work. Would not let me return....smh. So I am looking at a new flashlight anyhow and would like it to go with this battery so its not a total loss. I definitely would like to go for the SL-20L but would still be satisfied with the 20x im sure if that is the only flashlight that will take this battery stick.. Thanks
    1 Answers
    Unfortunately no this battery would not work for this light. we do apologize.
    Customer Service
    on November 6, 2014

    from San Diego, CA asked:
    September 16, 2014
    Will the Bust A Cap SL-20X Cap work for this light?
    1 Answers
    Yes this item is able to fit on the SL20L model flashlight.
    Customer Service
    on September 16, 2014

    from USA asked:
    March 17, 2014
    Does the ST-SL20L-20702 include charging docks for vehicles?
    1 Answers
    The model number 20702 would be the car charger version of this light.
    Customer Service
    on March 17, 2014

    from Seattle, WA asked:
    December 2, 2013
    I bought this flashlight a few weeks ago for my husband thinking it was compatible with his current charger. Unfortunately, it is not compatible. Is there a way I can buy JUST the charger for it by itself?
    1 Answers
    Please seach ST-22052 as this is a charger for the SL-20 please be aware that this charger does not include the power cable so that would need to be purchased as well.
    Customer Service
    on December 3, 2013

    from San Diego asked:
    October 2, 2013
    Does this come with a battery? NiCd or NiMh
    1 Answers
    yes this product does come with a battery. in the drop down menu you have the option between NiCd or NiMh.
    Customer Service
    on October 2, 2013

    Walter l Jeffers Jr
    from florida asked:
    August 28, 2013
    wher can I fine a.•NiCd battery/NiMH battery rechargeable .thanks
    1 Answers
    We have the NiCd battery on our website. You can view it here:
    Customer Service
    on August 28, 2013

    July 20, 2013
    Does this flashlight come with a charger and a case for it ?
    1 Answers
    You can choose which charger option you would like in the drop down option box, but the light does not come with a holster.
    on July 20, 2013

    Marcella Reynolds
    May 4, 2013
    explain the warrinty what do you mean by limited
    1 Answers
    To view Streamlight's warranty, please view this link:
    on May 4, 2013

    December 26, 2012
    What does NiMH and NiCd mean and what is the difference please. Also, just to make sure..this does fit the same charger as the SL-20x correct? Thanks for any help.
    1 Answers
    The main difference between the two is that NiMH battery (the newer technology of the two) offers higher energy density than NiCd. In other words, the capacity of a NiMH is approximately twice the capacity of its NiCad counterpart. What this means for you is increased run-time from the battery with no additional bulk or weight. And yes, the SL-20X charger will work with this flashlight also.
    on December 26, 2012

    You May Also Like