LED Bulbs: Highly recommended. Use a 7W to 12W LED bulb, which provides the equivalent brightness of a traditional 60W incandescent bulb while running cool.
Incandescent Bulbs: You can use traditional bulbs, but do not exceed 60W to prevent overheating the lamp socket and shade.
Energy-Saving (CFL) Bulbs: Typically between 8W and 15W