Progress Lighting 13-Watt Self-Ballasted GU24 Base CFL 2700K Bulb 13-Watt GU 24 Self-Ballast CFL, 2700K About Progress Lighting: For over 100 years, Progress Lighting has been committed to providing a diverse selection of high quality lighting fixtures - earning them the reputation as the #1 decorative lighting line among Builders and Remodelers. Progress understands what it takes to be a leader...offering products that deliver aesthetic appeal, stellar performance, easy installation and good value.