SIDEWINDER X Aviation Tactical LED Flashlight, 275 lm output, Streamlight, C4 LED green, blue, IR

Streamlight SIDEWINDER X Tactical LED Flashlight

The Streamlight Sidewinder X is a compact and highly durable multifunction tactical flashlight designed for professional use by armed forces, aviation personnel, emergency services, and demanding outdoor users.

Thanks to its combination of multi-color LEDs, infrared mode, tilting head, and multi-fuel power system, it delivers exceptional flexibility without the need for additional equipment. The flashlight is designed for one-handed operation, even while wearing gloves and in complete darkness, allowing precise light direction without holding it in hand.

The flashlight features a Multi-Fuel power system supporting two AA batteries (alkaline or lithium) or one lithium CR123A battery. This flexibility ensures reliable operation even when a specific battery type is unavailable. Depending on the selected mode, runtime ranges from tens of hours to over 100 hours, making it suitable for extended field use.

The Sidewinder X is equipped with a robust clip and universal mount, allowing secure attachment to MOLLE webbing, a belt, gear, or helmet. An integrated attachment point for a lanyard or carabiner provides additional security in demanding environments. Its compact size and low weight make it ideal for continuous carry.

The design includes a tilting head with approximately 185° of adjustment, enabling precise light positioning without handheld use. A rotary selector clearly separates power, color selection, and brightness control, reducing the risk of accidental switching. Tactile battery polarity indicators allow battery replacement even in total darkness.

The flashlight body is made from high-strength, impact-resistant polymer, protecting internal components during hard use. A polycarbonate lens with scratch resistance ensures long-term durability. The light meets the IPX7 waterproof standard, allowing submersion up to 1 meter for 30 minutes, and is built for long-term professional deployment.

The white LED delivers up to 275 lumens with an effective range of approximately 110 meters. The beam pattern is optimized for short- to mid-range tasks such as navigation, area checks, and technical work, while regulated electronics provide consistent output without flicker.

Light Modes

Each SIDEWINDER® X flashlight variant is optimized for a specific application. All models use dedicated LED emitters and offer multiple output levels (Low / Medium / High), including a strobe mode depending on the selected color.

Military Model

A model designed for military and tactical use, with an emphasis on NVG compatibility and preservation of night vision.

Available colors:

• White – full-power tactical illumination
• Red – preserves night vision adaptation, ideal for map reading
• Blue – trace identification, marking, signaling
• IR (infrared) – covert illumination for NVG use

Typical applications:

• combat and training operations
• night movement and terrain navigation
• tactical and signaling use

Aviation Model 

A variant primarily intended for aviation personnel, pilots, and ground crews, where cockpit orientation, signaling, and minimized glare are essential.

Available colors:

• White – general task lighting
• Green – reading instruments and maps with minimal impact on night vision
• Blue – signaling, equipment inspection, detail identification
• IR (infrared) – compatible with night vision devices (NVG)

Typical applications:

• cockpit and onboard systems
• night flights and ground operations
• signaling and identification tasks

UC Model

User Configurable (User Compatible) model. A variant intended for users who require maximum flexibility and the ability to select color combinations according to their specific needs.

Available colors:

• White – universal illumination
• User-selectable color combination (red / green / blue – depending on configuration)
• IR (infrared) – compatible with night vision devices

Typical applications:

• law enforcement, emergency services, security forces
• outdoor use, SAR, technical work
• specialized professional applications

Key Features of the Streamlight SIDEWINDER X Tactical LED Flashlight

• rugged polymer body
• polycarbonate lens with scratch-resistant coating
• clip compatible with MOLLE, belt, and helmet mounting
• attachment point for lanyard or carabiner
• professional-grade construction for long-term use
• light output: up to 275 lm (white)
• beam distance: approx. 110 m
• power supply: 2× AA / 1× CR123A
• runtime: tens of hours up to >100 h depending on mode
• waterproof rating: IPX7
• weight: approx. 95–125 g depending on battery
• head: tilting ~185°