Either to be carried in a backpack or stored in the tool box, the folding functionality makes the Sunset a perfect choice. Either to be carried in a backpack or stored in the tool box, the folding functionality makes the Sunset a perfect choice. The Electric Spark on Sunset utility lighters is easy to strike, and has more resistance to humidity. Empowered by piezoelectric crystal, the high voltage produced ignites the gas and ensures a long and secure life for the product.