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The VOLTIX 510 threaded battery pen is a compact, cordless soldering pen designed for precise repair work and everyday DIY projects. Its universal 510 thread battery connection allows you to attach the included soldering tip and enjoy a portable soldering solution without bulky stations or power cords. This 510 battery pen features a ring-shaped LED button that clearly shows your working mode: green for 3.0V (low), blue for 3.6V (medium), and red for 4.2V (high). Just press the button 5 times to power on or off, and 3 quick clicks to change the temperature mode. The stainless-steel body is slim, comfortable to hold, and easy to control for fine work on electronics, jewelry, and craft materials. With a 650mAh rechargeable pen battery, the VOLTIX soldering pen heats quickly and is ideal for short, accurate jobs. Dual charging options (USB-C and Lightning cable compatibility) make it simple to recharge at home, in the workshop, or on the go. This universal 510 thread battery kit is intended for use as a soldering and thread-burning tool only, giving you a sleek and practical cordless solution for detailed projects.