Three-Level Precise Voltage Adjustment: Supports three voltage settings: 3.4V for green light, 3.7V for blue light, and 4.0V for red light, meeting the temperature requirements of various welding scenarios. It offers precise temperature control and is easy to use. Quick Preheating: Built-in high-performance heating element heats up in 8 seconds. Low power consumption saves waiting time and improves working efficiency. Premium Material: Made of premium aluminum alloy, the body is lightweight, sturdy and comfortable to grip. You will not feel tired after long-time use. Versatile Usage: Features a 510 connector suitable for a variety of soldering tip sizes. Tips can be easily swapped to meet specific soldering needs, making it ideal for both precision electronics work and everyday repairs. Flexible Charging: Supports USB charging via power bank, computer and wall adapter. Convenient to replenish power for and hobby use., Manufacturer: DONGKER