When buying a compact fluorescent light bulb, choose a wattage that's about one-fourth of what you usually buy (incandescent bulbs). The table below shows some typical wattage conversions for compact fluorescent lights (CFLs):
• 25-watt incandescent = 5-watt compact fluorescent
• 40-watt incandescent = 7-watt compact fluorescent
• 60-watt incandescent = 11-watt compact fluorescent
• 75-watt incandescent = 15-watt compact fluorescent
• 100-watt incandescent = 20-watt compact fluorescent