CAUTION: Do not refill close to an open flame!
 
 - Make sure the flame is completely turned off before refilling.
 
- Using a small flat-head screwdriver, turn the flame height adjuster on the bottom of the butane lighter to the lowest setting. This will reset the flame intensity to nothing. Be sure you are turning the FLAME ADJUSTMENT valve... --NOT-- the screw that holds the lighter together (look for the + and - signs).
 
- Remove excess air from the fuel tank by pressing the refill inlet valve with a small (phillips head) screwdriver until no hissing sound is heard. Hold butane lighter away from face when taking air out. This step is necessary because excess air in the fuel tank will not allow butane to be refilled and cause the lighter to not work properly.
 
- After shaking the butane gas refill can, hold both the lighter and the butane bottle upside-down. Then press the stem of the refill can directly onto the refill inlet valve (make sure the valve is covered completely by the stem, so that it won't spray when you press down!) when you press down on the bottom of the butane lighter and let butane gas go into the lighter for about 10 seconds.
 
- Do not ignite butane lighter for about 2 - 3 minutes until the butane gas in the gas tank reaches room temperature.
 
- Turn the valve in 1/4 turns counter-clockwise. After each 1/4 turn, try to ignite the lighter until you get the desired flame intensity. Hold butane lighter away from face when igniting. If the flame height adjuster is turned up too high, the lighter will not ignite and you will hear a hissing sound. If this happens, please lower the adjuster by turning clockwise.
 
To reiterate for clarity, because lots of people end up getting confused about which thing needs to be twisted to make the adjustment: Please be sure you are turning the FLAME ADJUSTMENT valve... --NOT-- the screw the holds the lighter together (look for the + and - signs).