The new Spectrum-C from Armament Systems and Procedures (ASP) is versatile tactical flashlight featuring multi-color beams, dual-fuel power options, and programmable modes for professional and law enforcement use. ASP needs little introduction to readers. A company known for rigorous engineering and field‑driven design, ASP spends a considerable portion of its revenues on research and development, supporting extensive engineering, product testing, and field evaluation. ASP equipment is used by agencies in more than 110 countries, and the company invests nearly two million dollars each year in free training for law enforcement officers.
Its tactical lighting tools follow the same philosophy as all of its equipment: simplicity, durability, and intuitive operation under stress. The Spectrum‑C reflects that mission through a unified control system, multi‑spectrum capability, and dependable construction suited for patrol, investigation, and tactical work. All asp tactical lights are individually serial numbered.
The ASP C-Series Flashlight System
I previously reviewed ASP’s Triad-C and Scribe-C lights in Spotter Up. ASP’s C-Series was developed as a cohesive family rather than as isolated products. Every model shares the same operating system, which allows officers to move between lights without retraining or hesitation. This consistency reduces errors in low‑visibility or high‑stress situations.
All ASP lights, including the Spectrum‑C, which is the subject of this review, are tested to the ANSI PLATO FL1 standard for output, runtime, impact resistance, and water resistance. ASP was a founding member of PLATO and continues to support measurable, repeatable performance criteria rather than marketing claims. C-Series lights also undergo ASP’s internal durability evaluations, which are known for exceeding minimum standards.
ASP Spectrum-C
The Spectrum‑C is a six‑mode tactical flashlight that delivers true multi‑color capability. Its versatility stands out. Almost no duty‑grade lights combine white, red, blue, ultraviolet (UV), low, and strobe illumination in a single, unified control system. The Spectrum‑C does, giving officers and investigators immediate access to the right beam for every task.
The Spectrum‑C delivers a powerful white primary beam complemented by secondary red, blue, UV, low, and strobe modes. Red light preserves night vision and improves visibility in fog. Although it is commonly claimed that blue light cuts through fog better, physics shows the opposite. Blue scatters more in fog due to its shorter wavelength, while red penetrates more effectively. Blue light enhances contrast for detecting blood and certain forms of trace evidence. UV light reveals security features, fluorescent inks, and many organic materials (but not blood).It also enhances post‑incident identification when deployed alongside less‑lethal aerosol sprays formulated with UV‑marker dye, such as ASP Defender OC sprays, A quick double‑tap of the tail switch activates the user‑programmed secondary mode, allowing fast, seamless transitions during searches, inspections, or evidence identification.
Construction
The Spectrum‑C has a substantial duty‑ready feel without unnecessary bulk. It measures 6.86 inches in length, 1.4 inches in diameter, and weighs 7.42 ounces with batteries installed. The body is machined from 6061 T6 aerospace aluminum and finished with Type III hardcoat anodizing. The all‑weather foamed vinyl grip, familiar to anyone who has used ASP batons, provides secure handling whether hands are wet, cold, or gloved. The light uses premium components Internally, including gold‑plated connectors, a machined and polished aluminum reflector, and an optical glass lens to ensure maximum performance and long‑term reliability.
The Spectrum‑C carries comfortably on a duty belt or in ASP’s Tactical Light Case (TLC). The TLC is ASP’s most popular flashlight accessory. Designed to meet the needs of law enforcement, It is not just a holster to carry and protect the light, but hands-free illumination tool that rotates 360 degrees with 12 positive click-stop positions. It is adjustable for a custom fit on belts from 1 to 2.5 inches wide as well as MOLLE gear.
Controls
ASP Duty and Strategic C‑Series lights, including the Spectrum-C, which is one of its Strategic C-Series lights, utilize a standardized tail-cap interface, The control system is built around a single pressure switch and a three‑position tail cap that allows momentary activation, constant‑on operation, or lockout. A single press activates high mode, while a double‑tap accesses the programmed secondary mode. Mode selection is handled through a gray selector button, and once set, the light remembers the user’s choice automatically.
Power Options
The Spectrum‑C operates on ASP’s USB‑C rechargeable 18650 battery or two CR123A lithium batteries when charging is not convenient. The rechargeable cell can be charged inside the flashlight or externally, using the included USB‑C cord. An onboard indicator displays real‑time charge status. Green indicates more than fifty percent, yellow indicates twenty to fifty percent, and red indicates less than twenty percent. Built‑in protection circuits guard against overcharging, over‑discharging, and overheating.
Output and Beam Performance
The Spectrum‑C produces 800 lumens of white light in its default mode with a beam reaching 190 meters. Its optical system balances throw and spill, creating a defined hotspot for distance work and ample peripheral light for situational awareness. Runtime on high is three hours., The beam quality is excellent.
Final Thoughts
In my testing, the Spectrum‑C performed flawlessly. Its multi‑spectrum capability proved genuinely useful. he unified system behind the C-Series is a genuine advantage because when every light shares the same controls, materials, and power options, training becomes easier and equipment transitions become seamless. For agencies, that level of consistency is invaluable.
The Spectrum‑C is a well‑engineered, highly adaptable duty light that performs exactly as intended. Its multi‑beam capability, rugged construction, and flexible deployment make it an excellent choice for law enforcement, security professionals, search‑and‑rescue teams, trainers, outdoor users, and anyone who needs a reliable, versatile illumination tool in demanding environments.
The Spectrum‑C package includes the flashlight, a rechargeable 18650 lithium‑ion battery, a battery storage case, and a retractable USB‑C charging cord.
The Spectrum-C has a MSRP of $184.00. Laser engraving is available at extra cost. ASP backs the flashlight with a limited lifetime warranty covering defects in original workmanship and materials. Purchases made through the ASP website may be returned within thirty days, excluding shipping.
Spectrum-C Specifications
Specification | Detail |
|---|---|
Length | 6.86 inches |
Diameter | 1.4 inches |
Weight | 7.4 ounces (with battery) |
Output (High) | 800 lumens |
Beam Distance | 190 meters |
Runtime (High) | 3 hours |
Construction | 6061 T6 aerospace aluminum with Type III hardcoat anodizing |
Grip | All weather foamed vinyl |
LED | Cree XPL |
Power Options | USB C rechargeable 18650 or CR123A primaries |
Switching | Tail cap pressure switch with momentary, constant on, and lockout |
Secondary Modes | 25 lumens, strobe, red, blue, UV (user programmable) |
Warranty | Limited lifetime warranty |
MSRP | $184.00 |
Material Disclosure
I received this product as a courtesy from the manufacturer so I could test it and give my honest feedback. I am not bound by any written, verbal or implied contract to give this product a good review. All opinions are my own and are based off my personal experience with the product.
*The views and opinions expressed on this website are solely those of the original authors and contributors. These views and opinions do not necessarily represent those of Spotter Up Magazine, the administrative staff, and/or any/all contributors to this site.





