The mentioned sparks is not bad and comes from the included Quick detonator. But he is super: here you do not have a problem in that a run out of coal again or they do not want to just burn properly, sufficient short dranhalten the lighter. Despite not airtight packaging I've never had a problem with moisture, even though I have stopped me in high humidity. And for that price I get the typical Dharmashop with Incense etc. usually only 10 pieces, not 100. In short, I will stay at this!