Compact handheld coil unit designed for precise control and reliable performance Key benefits Precise electrical control for repeatable results: an onboard digital panel lets you set arc length, pulse width from 0 to 500 microseconds, and pulse frequency to match the effect or experiment you need. Long runtime and fast reuse: four removable 2900 mAh batteries deliver up to 30,000 arcs per full charge, enabling extended use without frequent recharging. Built to last in hands and on display: a chrome plated handle with a smooth, rounded profile provides a comfortable grip. The handle surface has an electroplated metal layer that resists wear and corrosion. Clear status feedback: LED indicators show when the unit reaches 70 C or higher for overheat protection and when battery voltage reaches 12 V or lower for low voltage monitoring. Flexible operation modes: choose single trigger for manual pulses or automatic trigger for continuous arcs through the transparent acrylic shell and chrome plated handle design. Main features Digital controls: adjust arc length, pulse width 0 to 500 microseconds, and frequency from the front panel. Arc performance: produces visible electric arcs approximately 10 cm in length. Power and charging: runs on 110 to 240 V AC input and uses four removable 2900 mAh batteries. Battery life: up to 30,000 arcs per full battery charge under typical conditions. Indicators: LED alerts for overheat at 70 C or higher and for low battery at 12 V or lower. Construction: transparent acrylic shell for visibility and a chrome plated handle with durable electroplated finish and ergonomic shape. Trigger modes: single trigger for controlled pulses and automatic trigger for continuous effect. Why this product solves common needs Replaces unreliable or imprecise coil setups with a single handheld unit that provides repeatable pulse parameters for hobbyists, photographers, and educators. Reduces downtime by using removable capacity batteries and clear LED warnings for battery replacement and thermal condition. Improves handling and longevity through an ergonomically shaped chrome plated handle and wear resistant finish. Use scenarios Photography and videography: generate consistent 10 cm arcs for long exposure or speed imaging to capture controlled lightning style effects. Educational demonstrations and lab experiments: show controlled voltage pulses with adjustable pulse width and frequency for demonstrations in physics or electronics classes. Hobbyist and maker projects: integrate or use as a standalone pulse source for coil experiments, special effects, or prototype testing where adjustable pulse parameters are required. Specifications summary Pulse width range: 0 to 500 microseconds Arc length: about 10 cm Battery configuration: four removable 2900 mAh cells Arcs per full charge: up to 30,000 AC input: 110 to 240 V Thermal indicator threshold: 70 C or higher Low voltage indicator threshold: 12 V or lower Housing: transparent acrylic shell Handle: chrome plated, electroplated metal finish, smooth rounded ergonomic design Operation modes: single trigger and automatic trigger This description reflects the product functions and specifications as provided.