During multi-day backcountry expeditions, industrial fieldwork, and unexpected emergency scenarios, the depletion of communication and navigation equipment introduces immediate operational hazards; field gear must therefore pair a reliable illumination source with an independent power reserve. LED flashlight, rechargeable 10W 900Lm 5000K 4000mAh VIDEX VLF-A353 | black – external power bank function for device charging is an engineered multi-role handheld tool uniting high-performance optics with an integrated USB-A power bank module. This system architecture enables the user not only to maintain steady long-range illumination across demanding terrain, but also to deliver emergency electrical replenishment to smartphones, two-way radios, or GPS units directly from the flashlight battery bank.

The optical system is powered by a high-efficiency Luminus SST40 solid-state LED emitter, which, paired with a precision-calculated TIR (Total Internal Reflection) collimator lens and anti-reflective tempered glass, generates a focused 9460 cd beam intensity reaching up to 180 meters. Its 5000K neutral daylight profile ensures true-to-life surface rendering and natural terrain depth without bluish atmospheric scatter, substantially reducing visual fatigue during prolonged nocturnal monitoring. The integrated digital stabilization circuitry (Full discharge stabilization) maintains a flat 900-lumen output across the entire battery discharge cycle, preventing gradual dimming as cell voltage decreases. Beneath a sealed silicone weather cap on the chassis flank reside two independent ports: a USB-C input for recharging the internal battery and a dedicated USB-A output rated at 5V, 2A for powering external hardware. The torch operates on a high-capacity user-replaceable Li-ion 21700 battery (4000mAh, 3.7V), with backward compatibility for standard 18650 cells via the included adapter sleeve. The activation button incorporates a 4-stage color LED fuel gauge, mode memory retention, and a double-click electronic lockout to prevent accidental discharge inside packs or vehicle tool compartments. The CNC-machined aircraft-grade aluminum chassis meets the IP66 ingress standard against heavy water jets and abrasive dust, safely withstanding 1-meter drop impacts.

Technical Specifications and Operating Parameters

• Physical Dimensions (mm): Overall length 134.5 mm, head width 30 mm, and body depth 30 mm with a balanced chassis weight of 102 g (excluding battery) for streamlined ergonomic handling.
• Integrated Power Bank Module: Dedicated USB-A power output port (DC 5V, 2A) engineered for emergency field recharging of mobile phones, navigation gear, and radios.
• Optical Emitter and Wattage: High-efficiency Luminus SST40 LED module delivering 10W electrical power and a calibrated 900Lm maximum output.
• TIR Optical Architecture: Tempered glass TIR collimator lens generates 9460 cd of peak beam intensity with an authenticated throw reach up to 180 m in open country.
• Neutral Daylight Spectrum: 5000K color temperature ensures realistic contrast and accurate topographical perception without optical fatigue.
• Full Output Stabilization: Electronic driver maintains stable luminous intensity across the complete battery discharge cycle without voltage-induced fading.
• High Mode Parameters: 900Lm maximum output, 180 m throw, 9460 cd intensity, continuous operating runtime of 2h.
• Low Mode Parameters: 350Lm output, 125 m throw, 3990 cd intensity, sustained field runtime of 4h.
• Moon Economic Profile: 20Lm discreet output, 30 m throw, 265 cd intensity, maximum field autonomy up to 105h on a single charge.
• Strobe Defense Profile: 900Lm rapid pulsing defensive beacon (180 m, 9460 cd) with active runtime up to 2h for disorientation or signaling.
• Swappable Energy Reservoir: High-capacity Li-ion 21700 rechargeable battery rated at 4000mAh (3.7V); includes sleeve adapter for 18650 cells.
• Dual-Port Power Terminal: USB-C charging input (DC 5V, 1A) achieving full replenishment in 2.5 hours alongside an independent USB-A power output (DC 5V, 2A).
• Four-Stage Fuel Gauge: Switch-mounted LED array (solid green 100–80%, blinking green 79–50%, solid red 49–25%, blinking red 24–1%).
• Electronic Lockout Logic: Double-press safety command verified by a dual flash prevents accidental activation during transport and storage.
• Aviation-Grade Body: Machined aluminum alloy featuring wear-resistant matte black anodization and a resilient spring steel pocket clip.
• IP66 Ingress Protection: Complete dustproof barrier and heavy water jet resistance from any projection angle; 1 m drop impact tolerance.
• Package Deliverables: Multi-functional LED torch, Li-ion 21700 battery, 18650 adapter sleeve, steel pocket clip, wrist lanyard, and USB-C cable.