4 only bc straight out of box one candle was missing the enternal electrical components and I needed the exact  that it came with. Contacted Wayfair and immediately replacement was sent. Not just sent but sent overnight and a whole new set without me having to send anything back. Above and beyond customer service. The light effect of candle is exactly as wanted and bright enough can see them from start of driveway which is pretty far. Others have had dont compare. They even look great during the day!