A domestic coal fire being lit using firelighers (white, speckled blocks amid the coal)
A firelighter are small solid fuel tablets sold as a consumer product and designed to replace kindling in starting a fire. Firelighters are typically used to start wood or coal fire in homes. However, they can also be used alone as fuel in a specially-designed portable stoves.
Firelighters are given the UN number2623 for dangerous goods and hazardous substances and defined as "Firelighters; solid with flammable liquid."