Quick light charcoal is as the name suggests instant lighting as it has ignition chemicals added to the coal. This can be lit with a lighter and takes 5-10 seconds to light up and you then leave the coal for 2 minutes to burn off the chemical and then you are ready to enjoy your shisha. Clean quick light coal like Mera discs is popular, with Golden Flash being a bit more chemical. Chronic instant lights last up to 50% longer than any other makes.