A long-reach lighter has an extended handle, allowing you to safely ignite your gas grill without getting too close to the flames. To use a long-reach lighter, follow these steps: 1. Ensure the gas valve is open. 2. Hold the long-reach lighter near the burner. 3. Press the ignition button or trigger to produce a spark. 4. The gas should ignite. Be aware of any potential challenges, such as wind affecting the flame.