Review on Sylvania 20672 Compact Fluorescent 18 Watt: Energy-efficient Lighting Solution by Glen Braudrick

I'm having trouble finding Panasonic FDS18E35/4 4 pin light bulbs to replace the ones that have burned out in my Panasonic bathroom fan. Sylvania 20672 worked great. It starts up instantly with no flickering, and I like the 3500-degree color temperature - not too yellow (2700 degrees) and not too blue (5000 degrees). It's the color of a bright and sunny morning.