Dr. K3S Medical Penlight/Flashlight

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The Dr. K3S is crafted for healthcare professionals who need reliable, high-precision lighting. Featuring dual light modes and a high color rendering index, this compact tool is perfect for various examination settings. It includes multiple lighting modes, robust IPX7 waterproofing, and a tough design that ensures functionality even with gloves. Ideal for doctors, dentists, and healthcare workers who demand efficiency and precision.

The Dr. K3S stands out with its significantly lighter design and more focused beam distance, reaching up to 40 meters compared to the 10 meters of the Dr. K3 Pro, making it ideal for tasks requiring precise, long-range visibility. Additionally, the Dr. K3S operates on a single AAA battery, offering greater convenience and portability, whereas the Dr. K3 Pro utilizes a built-in lithium battery, which provides different charging options but adds weight.

Technical Specifications

  • Multiple Modes: Yellow (10 Lumens), White (75 and 15 Lumens)
  • High CRI: 90 (Yellow) for true-to-life colors
  • Extended Runtime: Up to 15 hours on medium, 7h 30m on low
  • Waterproofing: IPX7 rated
  • Beam Distance: Up to 40 meters
  • Impact Resistance: 1 meter
  • Battery: 1 x AAA battery (included)
  • Dimensions: 4.13 inches x 0.56 inches x 0.56 inches (105 mm x 14.3 mm x 14.3 mm)
  • Weight: 0.66 oz (18.7g) - without battery
Warnings & CA Prop65

This product can expose you to chemicals including Chromium (Hexavalent Compounds), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to

Shipping & Returns

Introducing the Dr. K3S Dual Light – Precision and Durability for Medical Professionals

Optimal Light Technology: The Dr. K3S is equipped with dual light settings, providing both yellow and white light. The yellow light (3000K) minimizes glare during patient exams, while the white light (5500K) offers clear, bright illumination for detailed work.

High Fidelity Color Rendering: With a color rendering index (CRI) of 90 in its yellow mode, the Dr. K3S ensures that you see colors as they are supposed to appear, critical for accurate diagnosis and treatment in medical settings.

Adjustable Light Modes: This flashlight can adapt to various lighting needs with three modes—10 lumens in yellow, and 75 and 15 lumens in white—balancing brightness with battery efficiency.

Long-Lasting Battery Life: The Dr. K3S provides a lengthy runtime, lasting up to 15 hours on medium and 7 hours 30 minutes on low, making it dependable for shifts of any length.

Robust and Reliable: Certified with an IPX7 waterproof rating, it guarantees performance in wet conditions and is built to withstand drops from up to one meter.

Compact and Convenient: Measuring just 4.13" in length and weighing a mere 0.66 oz without the battery, the Dr. K3S is designed for easy portability and comfort, fitting effortlessly into a lab coat or pocket.

The Dr. K3S is an essential tool for any healthcare setting.