Air-conditioners (ACs), refrigerators, washing machines, digital cameras and video games are set to become cheaper with the government preparing to lower the Goods and Services Tax (GST) on most consumer goods, sources told NDTV on Wednesday. While the GST on ACs, digital cameras and video games is at the highest slab of 28 per cent, refrigerators and washing machines are taxed at the rate of 18 per cent. To simplify the indirect tax regime, the government plans to move most goods to a GST of 18 per cent and below.