Skip to content The PROLUTECH FR4000 K-Light is the ultimate rechargeable multi-purpose flashlight for demanding professionals. Combining an outstanding 4,000-lumen output with an ultra-compact design, it adapts instantly to your field needs, serving perfectly as both a handheld flashlight or a headlamp.
Built to withstand the harshest environments, it delivers unmatched durability (IP68 waterproof rating and 10-meter drop resistance), ensuring absolute reliability where every detail matters.
Extreme Performance: 4,000 lumens of brightness (CREE XHP70.2 LED) with a 114-meter beam distance.
Military-Grade Durability: IP68 certified (submersible up to 10m) and highly impact-resistant (drops up to 10m).
Record Battery Life: Up to 64 days of runtime depending on the selected mode.
Pro Ergonomics: Secure magnetic USB charging (easy to use even with gloves) and integrated magnet for hands-free operation.
Maximum Versatility: 10 lighting modes and dual-use design (handheld or headlamp).
Optimized by Seraphinite Accelerator