LEXIVON LX-770 Butane Soldering Iron Kit, 7 Tips and Adjustable Flame

Some projects need a focused soldering tip, while others call for an open flame to cut or seal. The LEXIVON LX-770 is a cordless, butane-powered tool designed to cover those tasks in one kit, with self-igniting operation, an adjustable flame and a set of specialized accessories.

Its refillable aluminum fuel tank supports up to 75 minutes of run time, and the flame can be adjusted from 1/2" to 2 1/2". That range helps tailor the tool to the job, whether you are working with a soldering tip or using the flame directly. Butane is not included, the tank uses standard butane gas.

Usage tips

Choose the appropriate accessory for the task: the kit is intended for soldering, cutting and sealing. For soldering, use a soldering tip, for other work, the adjustable flame offers a different way to direct heat. The electronic self-igniting trigger is paired with a flame-locking button, which can help keep the flame engaged during a task. An ignition stopper is also part of the design.

For a practical bench job, such as soldering a small connection, attach a soldering tip and adjust the heat for the work at hand. When the task calls for direct flame instead, select an appropriate accessory and set the flame length accordingly. Refill with standard butane as needed, following the product’s operating instructions.

Key specifications

• Type: Cordless butane soldering iron and multi-purpose kit
• Model: LX-770
• Accessories: 13-piece set, including a 7-tip set
• Flame adjustment: 1/2" to 2 1/2"
• Maximum temperature: Up to 2400°F with the flame, up to 1100°F with soldering tips
• Fuel tank: Refillable aluminum
• Run time: Up to 75 minutes
• Weight: 458 g
• Colour: Black
• Included: Carrying case

Pros

The main advantage is versatility: one compact, cordless kit can handle soldering as well as cutting and sealing tasks, rather than being limited to a single type of heat work. The adjustable flame and interchangeable accessories give you options for different jobs, while the refillable tank and stated run time support longer work sessions between refills. The manufacturer also states that the tank refills in 10 seconds.

Customer feedback is positive about the heating range, ease of operation and perceived build quality. Experiences with ignition and soldering results vary, and some buyers raise durability concerns. These impressions are useful context, but the kit’s listed functions and specifications are the clearest guide to whether it suits your work.

Questions before you buy

What fuel does the LX-770 use? It uses standard butane gas. Butane is not included, so have fuel available before you plan to use the tool.

What kinds of work can it handle? The kit is designed for soldering, cutting and sealing. Select the suitable accessory and use either a soldering tip or the adjustable flame for the task.

How long can it run between refills? The listed run time is up to 75 minutes. Actual use depends on how the tool is operated and the flame setting.

Final verdict

The LEXIVON LX-770 suits DIYers and professionals who want one cordless butane kit for several heat-based tasks. Its 7-tip set, adjustable flame and refillable aluminum tank make it a practical choice for moving between soldering, cutting and sealing work without relying on a corded tool.