A common complaint I hear is the lack of illumination from gas fueled post lanterns. Most people unhappy with the light output, end up capping the gas line or doing away with the fixture altogether. Before you make that decision, consider converting to low voltage.
While a gas fueled fixture can provide a sense of serenity, it lacks the firepower to provide a functional amount of light. While some conversions may be more trying, the majority are within reach. Look at it this way. You will spend on average $300.00 to $400.00 dollars but see a return on investment in a fairly short amount of time. Without an igniter switch, most gas fueled fixtures will cost you anywhere from $.50 to $1.00 to burn per day.
The first step is hiring a licensed plumber to come out and cap the gas line. This is inexpensive and absolutely necessary. Second, purchase a conversion kit or contact a local outdoor lighting specialist to complete the project for you. You will be amazed at the output of a 35 or 50 watt quartz halogen bulb. Not only will the change enhance the functionality of your home, it will also conserve energy.