Standard candles won't fit. Standard candles are too thin and they need to be the right size for the mechanism, too thin and it goes through the hole at the top, too thick and it wont fit in the holder. I made some to fit by melting candles and remaking using a toilet roll holder as a mould, but after all the faffing about I don't think it was worth it TBH. I already have one of these, same packaging and make but the one I already have was silver coloured, the ones I ordered arrived this morning a brass colour, and after a quick look they seem a lot better quality. It seems they are made of better quality metal, but I have not made a proper comparison yet so it might just be because they were shiny and new giving that impression.