During heavy industrial plant repair, automotive machinery diagnostics, night security patrols, and rugged field missions, standard electronic pushbuttons frequently lead to operating delays or accidental mode shifts when manipulated with gloved hands. LED flashlight, rechargeable 20W 1700Lm 6500K 4000mAh VIDEX VLF-A156R | black – mechanical rotary mode switch is an advanced handheld lighting tool designed with an engineered magnetic selector ring positioned around the bezel assembly. This mechanical interface guarantees immediate, tactilely positive, and unambiguous mode selection even while wearing heavy work gloves or insulated winter mittens, completely eradicating switch hunting under high-stress conditions.

The optical system is driven by a high-efficiency Luminus SST40 solid-state emitter paired with a computer-modeled smooth deep reflector and anti-reflective tempered glass, concentrating light into a commanding 10960 cd central hotspot. In maximum Turbo mode, the 20W power engine generates 1700 lumens of piercing output, penetrating darkness across distances up to 210 meters, while its 6500K cool white daylight spectrum provides acute edge contrast for structural inspections. A decisive technical advantage is the integrated digital circuit providing full discharge stabilization, sustaining continuous lumen output across battery discharge without gradual decline. Energy is stored in a high-capacity user-replaceable Li-ion 21700 cell rated at 4000mAh, with native adaptability for standard 18650 cells. To seal the charging interface against corrosive humidity, fine grit, and mechanical blows, the onboard USB-C port is enclosed within the metallic collar and revealed by rotating the collar counter-clockwise. A 4-stage LED fuel gauge on the housing delivers real-time visibility into remaining battery reserves. The CNC-machined aircraft-grade aluminum chassis with deep black anodization achieves IP68 submersion sealing down to 2 meters and easily withstands 1-meter drop impacts.

Technical Specifications and Operating Parameters

• Physical Dimensions (mm): Overall length 131 mm, head diameter 31 mm, and body diameter 31 mm with an operational chassis weight of 85 g (excluding battery) for streamlined carry.
• Mechanical Rotary Selector: Bezel-integrated magnetic rotary ring enabling unambiguous single-handed mode shifting and activation.
• Optical Emitter and Wattage: High-performance Luminus SST40 LED module delivering 20W power and up to 1700Lm of calibrated Turbo flux.
• Beam Throw Geometry: Deep smooth reflector produces 10960 cd of peak beam intensity reaching up to 210 m in open country.
• Color Temperature: 6500K (cool white daylight output delivering maximum visual edge definition for perimeter and mechanical control).
• Full Output Stabilization: Electronic driver maintains stable luminous intensity across the entire battery discharge cycle.
• Turbo Mode Parameters: 1700Lm maximum output, 210 m throw, 10960 cd intensity, runtime up to 2h 45min (under thermal regulation).
• High Mode Parameters: 770Lm output, 155 m throw, 6000 cd intensity, sustained runtime of 3h.
• Middle Mode Parameters: 480Lm output, 135 m throw, 4560 cd intensity, sustained runtime of 5h.
• Low Mode Parameters: 160Lm output, 87 m throw, 1900 cd intensity, extended endurance runtime up to 17h 50min.
• Strobe Signaling Profile: 1700Lm high-frequency defensive disorienting pulse for immediate identification.
• Swappable Energy Reservoir: Standard Li-ion 21700 cell offering 4000mAh capacity (3.7V), compatible with 18650 cells.
• Concealed USB-C Terminal: Threaded protective collar conceals the USB-C port (DC 5V, 2A), achieving full replenishment in 2.5 hours.
• Four-Stage Fuel Gauge: Body-mounted LED array (4 green 100–75%, 3 green 74–50%, 2 green 49–25%, 1 green 24–10%, 1 red below 10%).
• Aviation-Grade Body: Machined aluminum alloy with diamond grip knurling and a resilient spring steel pocket clip.
• IP68 Ingress Certification: Complete dustproof barrier and waterproof sealing tested for continuous submersion down to 2 m depth; 1 m drop resistance.
• Package Deliverables: Handheld LED torch, Li-ion 21700 battery, steel pocket clip, USB-C charging cable, and technical guide.