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    Pen Lights

    Pen Lights — Streamlight Stylus & Stylus Pro LED Penlights for EDC, Medical & Inspection Use at Knifeworks

    A pen light goes where a flashlight won't — in a shirt pocket, a lab coat, a jacket breast pocket, or a gear pouch without adding any noticeable bulk. At Knifeworks, we carry Streamlight's Stylus and Stylus Pro LED penlights: the slim AAA-powered standards for medical, inspection, and everyday carry use. The Stylus runs a blue or white LED for detail work and signaling. The Stylus Pro steps up to 100 lumens of white LED output in six colors. Both clip to a pocket in seconds and disappear until you need them. Every pen light ships same or next business day from Columbia, Louisiana. Call 888-225-9775 with questions.

    • Streamlight Stylus Black With Blue LED

      Streamlight Stylus Black With Blue LED

      Streamlight Stylus Black With Blue LEDStylusAlkaline Battery-Powered Pen Light 65022FeaturesCase Material: Water-proof, machined aluminum case with anodized finish and non-slip, knurled grip Dimensions: Length: 6.21 in. (15.17 cm) Diameter: 0.375 in...

      $22.95
      Add to Cart
    • Streamlight Stylus Black With White LED

      Streamlight Stylus Black With White LED

      Streamlight Stylus Black With White LEDStreamlight Stylus. 6" overall. Momentary blink, and lock on switch. Black anodized aircraft aluminum body with non-slip knurled grip and pocket clip. 100,000 hour white light LED bulb. 11 lumens. Three AAAA...

      $27.95 $20.95
      Add to Cart
    Compare Selected
    Streamlight Stylus & Stylus Pro — Both Lines In StockThe slim AAA blue and white LED Stylus for detail work and signaling. The 100-lumen Stylus Pro for serious pocket carry. Six colors available.
    ⭐
    Streamlight — The Professional StandardStreamlight pen lights are the choice of medical professionals, inspectors, mechanics, and serious EDC carriers. Built to the same standards as Streamlight's full tactical line.
    Shirt Pocket Slim — Weighs Almost NothingBoth the Stylus and Stylus Pro run a single AAA battery and weigh under 1.5 oz. Clip to a pocket or pouch and forget they're there until you need them.
    Same or Next Business Day ShippingShips from Columbia, Louisiana. Orders before 2PM CST ship same day. Free ground shipping on qualifying orders over $99. Call 888-225-9775.

    The Pen Light Buyer's Guide (2026)

    Everything you need to choose between the Streamlight Stylus and Stylus Pro — output, color, and use case — explained by the team that carries these lights daily.

    Streamlight Stylus vs. Stylus Pro — Which Is Right for You?＋

    Streamlight makes two distinct pen light lines at Knifeworks. Here's how they compare across every meaningful spec:

    SpecStreamlight StylusStreamlight Stylus Pro LED
    OutputBlue LED or white LED (low lumen, detail/signal use)100 lumens white LED
    BatteryAAA (included)AAA (included)
    Colors AvailableBlack (blue LED), Black (white LED)Blue, Red, Black, Silver, Green, Orange
    Best ForMedical exam, detail inspection, signaling, backupGeneral EDC, inspection, fieldwork, pocket carry
    Price$20.95–$22.95$26.99–$29.99
    Which to Buy?If you work in medicine, dentistry, veterinary practice, or any field where a focused low-output examination light is the tool — the Stylus blue or white LED is the standard. For everyone else who wants a slim pocket light that actually illuminates a space, the Stylus Pro at 100 lumens is the practical choice. The $4–$8 difference is worth it for the output step-up in everyday use.
    Stylus Pro Color Guide — Blue, Red, Black, Silver, Green & Orange＋

    The Streamlight Stylus Pro ships in six anodized aluminum colors. The color is cosmetic — all variants run the same 100-lumen white LED and AAA battery. Here's how to choose:

    ColorVisibility in a Pouch or PocketBest ForPrice
    BlackLow — blends into gearTactical carry, low-visibility preference, professional EDC$29.99
    SilverHigh — stands out in a pouchMedical / clinical use, easy to locate quickly$26.99
    BlueHigh — distinctive colorColor coding by profession or department, gift$26.99
    RedHigh — distinctive colorColor coding, gifting, easy location in a dark bag$26.99
    GreenHigh — distinctive colorOutdoor and field carry, color coding$26.99
    OrangeVery high — high-visibility colorEmergency kits, field use, easy recovery if dropped$26.99
    Color for Function, Not Just AppearanceOrange is the most practical color if you ever use the pen light in the field or in an emergency kit — it's the easiest to spot on the ground or in the dark. Silver is the classic medical standard. Black is for buyers who prefer their EDC gear to read as low-profile.
    Who Uses Pen Lights — Medical, EDC, Inspection & Field Use＋

    Pen lights serve a specific niche that full-size flashlights don't cover — slim, lightweight, pocket-clip carry for precision tasks. Here's who uses them and why:

    • Medical and Clinical: Nurses, physicians, paramedics, and veterinarians use pen lights for pupil checks, oral exams, ear and throat inspections, and wound assessment. The Stylus blue LED is the traditional medical standard. The Stylus Pro white LED is increasingly preferred for its brighter, more neutral light in clinical settings.
    • Mechanics and Technicians: Engine bays, wiring harnesses, and tight mechanical spaces need a light that can be held in the mouth or clipped to a collar while both hands work. A 100-lumen pen light in the shirt pocket is standard in professional shops.
    • Inspectors and Contractors: Attic spaces, wall cavities, electrical panels, and crawl spaces need a light that doesn't require a hand to hold. The clip-on Stylus Pro lives in the breast pocket and deploys in one second.
    • EDC / Everyday Carry: For buyers who find a full-size flashlight too bulky for daily pocket carry, the Stylus Pro at under 1.5 oz is the light you actually carry. It fits alongside a pen in any pocket, bag, or planner.
    • Emergency Kit and Vehicle: A pen light is a practical emergency kit addition — slim, AAA powered, long shelf life, and versatile enough to handle any close-range illumination task.
    The Shirt Pocket StandardThe Stylus Pro is the light that disappears into a shirt pocket alongside a pen and stays there all day without reminder. That's the use case it's designed for — and why it's the most widely carried Streamlight pen light among professionals who need light available without thinking about it.
    Pen Light vs. Keychain Light vs. EDC Flashlight — Which Format Is Right for You?＋

    Pen lights, keychain lights, and compact EDC flashlights all solve the "I need a light on me" problem differently. Here's how they compare for the most common carry scenarios:

    FormatCarry MethodOutput RangeBest ForWeakness
    Pen Light (Stylus Pro)Shirt pocket clip100 lumensProfessional carry, medical, inspection, tasks requiring precisionLower output than compact EDC; AAA only
    Keychain Light (Nite Core TIKI)Key ringUp to ~700 lumensAlways-on-person backup, never separated from keysSmall body, limited grip for extended use
    Compact EDC FlashlightPocket, bag, or belt clip300–3,000+ lumensPrimary everyday carry light, maximum versatilityBulkier than pen or keychain format

    The pen light is the right format when your carry context rewards the slim clip-on form factor over output — professional environments, clinical settings, trades, and anyone who lives in a shirt pocket. If you need more raw output, step to a compact EDC flashlight. If you need it permanently attached to your keys, a keychain light is the better answer.

    The Best Setup for Most ProfessionalsStylus Pro in the shirt pocket + Nite Core TIKI or Streamlight Nano on the keychain. The pen light handles precision work; the keychain light handles the gap when the pen light isn't in the pocket. Both together weigh under 2.5 oz.
    AAA Battery Guide — Why the Stylus & Stylus Pro Use AAA＋

    The Stylus and Stylus Pro run AAA alkaline batteries — the most widely available battery size on earth. Here's why that matters for a pen light specifically:

    • Universal availability: AAA batteries are available at every gas station, pharmacy, grocery store, and airport in the world. If the battery dies on a job site, in a hospital, or during travel, a replacement is never more than a short walk away.
    • Long shelf life: AAA alkaline cells hold charge for 5–7 years in storage. A Stylus Pro kept in an emergency kit or rarely-used gear bag will still have a working battery when you reach for it — unlike a rechargeable that may have self-discharged.
    • Lightweight: AAA cells are the lightest standard battery format. In a light already designed to be unnoticeable in a pocket, the AAA platform keeps total weight under 1.5 oz.
    • Simple maintenance: When the light dims, replace one AAA — no cable, no charging time, no dock. Swap and carry on within 30 seconds.
    Stock Extra AAAs Anywhere You Carry the LightKeep one spare AAA in your EDC bag, gear pouch, or desk drawer alongside the pen light. The Stylus Pro's runtime at 100 lumens is several hours — but when it dims in the middle of a job, a pre-positioned spare means zero downtime.
    Streamlight Stylus Pro — Why It's the Professional Standard＋

    The Streamlight Stylus Pro has been the pocket pen light of choice for nurses, paramedics, mechanics, and inspectors for years. Here's what makes it the professional standard in its category:

    • 100 lumens from a AAA: Getting 100 lumens of consistent white LED output from a single AAA cell in a body this slim is an engineering achievement. Most competitive AAA pen lights top out at 40–60 lumens. The Stylus Pro's output is genuinely useful for inspection, not just symbolic.
    • Anodized aluminum body: The Stylus Pro's body is machined aluminum with hard-coat anodizing — not plastic. It survives pocket carry, drops onto hard floors, and incidental contact with tools and equipment without cracking or fading.
    • Positive clip retention: The pocket clip holds the light securely in any pocket orientation and doesn't pull out when the pocket is accessed. In a clinical or field environment, losing a light because the clip released is a real problem the Stylus Pro's clip design addresses.
    • Trusted brand in professional environments: Streamlight sells more professional flashlights to law enforcement, EMS, and the trades than any other manufacturer. The Stylus Pro carries that brand credibility into the pen light format.
    Gift for a Nurse, Paramedic, or Mechanic?The Streamlight Stylus Pro at $26.99–$29.99 is one of the best professional gifts in the Knifeworks catalog — practical, from a trusted brand, usable every single day, and priced right. Buy the color that matches their preference or profession.
    Pen Light Quick Reference — Find Your Light in 30 Seconds＋
    I need a pen light for…Best ChoicePriceKey Feature
    Medical exam / pupil check / clinicalStreamlight Stylus Black w/ Blue LED$22.95Blue LED for pupil response, traditional medical standard
    Clinical with brighter outputStreamlight Stylus Black w/ White LED$20.95White LED, slim, neutral clinical light
    General EDC / everyday pocket carryStreamlight Stylus Pro (any color)$26.99–$29.99100 lumens, anodized aluminum, pocket clip
    Mechanic / inspection / tradesStreamlight Stylus Pro Black$29.99100 lumens, professional black finish, pocket clip
    Emergency kit or vehicleStreamlight Stylus Pro Orange$26.99High-visibility color, AAA long shelf life, easy to spot if dropped
    Color-coded team or departmentStylus Pro in department color$26.99Six colors — assign by role, team, or shift
    Gift for a nurse or paramedicStreamlight Stylus Pro Silver or Blue$26.99Professional brand, daily use tool, practical gift under $30
    Can't Decide?Call 888-225-9775 — our team carries pen lights daily and can help you pick the right Stylus or Stylus Pro for your specific situation.

    Pen Lights: Frequently Asked Questions

    Answered by the Knifeworks team — we carry pen lights in our shirt pockets daily.

    What is the best pen light to buy?＋

    For most buyers, the Streamlight Stylus Pro at $26.99–$29.99 is the right choice — 100 lumens of white LED output, anodized aluminum body, positive pocket clip, AAA battery, and available in six colors. It's the pen light that professionals in medicine, the trades, and field work have standardized on for years. For clinical or medical use specifically where a blue or lower-output white LED is preferred, the Streamlight Stylus at $20.95–$22.95 is the traditional standard. Both are excellent — the Stylus Pro is the better everyday carry value at the $4–$8 price difference.

    What is the difference between the Streamlight Stylus and Stylus Pro?＋

    The Stylus is the original Streamlight pen light — available in blue LED or white LED, slim, AAA powered, and designed primarily for medical examination and detail work where a focused low-output LED is the right tool. The Stylus Pro adds 100 lumens of white LED output in an anodized aluminum body with six color options. Both use a single AAA battery and the same slim pocket-clip form factor. The Stylus Pro is the better general-purpose EDC choice; the Stylus blue LED is the traditional medical standard for pupil checks and clinical examination.

    How many lumens does the Streamlight Stylus Pro produce?＋

    The Streamlight Stylus Pro produces 100 lumens of white LED output from a single AAA battery. For a light in this slim form factor, 100 lumens is a meaningful real-world output — it's bright enough to illuminate an engine bay, attic space, or dark room rather than just finding a keyhole. The runtime at 100 lumens is approximately 3.75 hours on a fresh AAA alkaline. The light has a single mode — there's no low/high switching, which keeps the operation simple and intuitive in any conditions.

    Can I use a pen light for medical exams?＋

    Yes — Streamlight pen lights are widely used in clinical environments by nurses, physicians, paramedics, and veterinary professionals. The Stylus with blue LED is the traditional medical standard for pupil response checks — the blue wavelength provides good contrast for observing pupil reaction without being as harsh as a full white LED at close range. The Stylus Pro with white LED is increasingly used in clinical settings for its brighter, more neutral light in oral, wound, and instrument inspection. Both are appropriate medical tools; the choice depends on your specific clinical application.

    What battery does the Streamlight Stylus Pro use?＋

    The Streamlight Stylus Pro uses a single AAA alkaline battery, included with the light. AAA batteries are the most universally available battery size — replaceable at any gas station, pharmacy, grocery store, or airport worldwide. The slim AAA form factor is what keeps the Stylus Pro's body diameter in the pen-width range. Runtime at 100 lumens is approximately 3.75 hours on a fresh alkaline cell. Lithium AAA batteries can extend runtime and improve performance in cold temperatures.

    Does the Streamlight Stylus Pro come with a clip?＋

    Yes — the Streamlight Stylus Pro includes an integrated pocket clip that holds the light securely in any shirt pocket, jacket breast pocket, or gear pouch. The clip is designed with positive retention — it won't release accidentally when the pocket is accessed, which matters in clinical and field environments where losing a light creates a real problem. The clip positions the light with the head down in a shirt pocket for immediate access and activation.

    What colors does the Streamlight Stylus Pro come in?＋

    The Streamlight Stylus Pro is available in six anodized aluminum colors: blue, red, black, silver, green, and orange. All colors run the same 100-lumen white LED and AAA battery — the color is purely cosmetic. Silver is the classic medical and clinical color. Black is the low-profile EDC standard. Orange is the highest-visibility color for field, emergency kit, and easy-recovery use. Green is popular for outdoor carry. Blue and red work well for color-coded team or department assignments.

    What is free shipping at Knifeworks?＋

    Knifeworks offers free ground shipping on qualifying orders over $99 to the 48 contiguous United States. Orders placed before 2PM CST ship same business day from Columbia, Louisiana. Call 888-225-9775 for questions about a specific order or shipping timeline.

    Streamlight Stylus · Streamlight Stylus Pro · 100 Lumens · AAA · Six Colors · Medical · EDC · Inspection · Free Shipping Over $99

    Streamlight Pen Lights — In Stock and Ready to Ship from Columbia, Louisiana

    Knifeworks carries the full Streamlight Stylus and Stylus Pro LED pen light lineup — all six colors of the Stylus Pro and both Stylus LED variants in stock. Free ground shipping on qualifying orders over $99. Questions? Call 888-225-9775 — we carry these lights in our shirt pockets daily.

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