Dimmable compact fluorescents are available, they are usually made with “cold cathode” technology. You can find dimmable bulbs here on Amazon. There’s a 12 pack available here, and a dimmable compact fluorescent spotlight here. 1000 Bulbs also sells a wide range of dimmable compact fluorescent bulbs
Who knew that compact fluorescents came in colored bulbs too? The yellow ones can be used as bug lights. They also come in other colors too. Available from: Save on Lighting ($9-$11)
This is a meta-efficient bulb because it is a 12V compact fluorescent. Available in 15-watts, equal to a 60-watt incandescent (880 lumens), or 23-watts, equal to a 100-watt incandescent (1350 lumens). These lights have a warm color (2700K), operate at 14° to 130°, and measure 5.2"L x 2.1" diameter.