Our stand-alone lighter system stores its own energy inside the KULAR Plasma-Lighter and recharges for free via its solar panel charger. Other lighter systems such as matches, or (disposable or refillable) lighters, either use toxic chemicals that cause air pollution or contain fuels such as butane fluid or naphtha-gas, both petroleum distillates that have been derived from non-renewable fossil fuels. Currently over 7 billion disposable lighters are put into landfill sites annually.