Scentsy Standard Warmers melt Scentsy Wax Bars with the heat of a low-watt bulb. Standard Warmers use 20-watt, 25-watt or 40-watt Edison bulbs. Or, add a pop of color to your warmer with our colored 25-watt bulbs in green, orange and red. Each warmer includes one light bulb. Additional light bulbs sold separately.