SYLVANIA integrated compact fluorescent lamps come in a variety of bulb shapes and sizes. They are energy saving, longer life lamp replacements for incandescent and halogen lamps providing up to 75% energy savings and up to 15x the life. Average rated life ranges from 6,000 to 15,000 hours. Lamps are available in a variety of correlated color temperatures - 2700K, 3000K, 3500K, 4100K, 5000K, and 6500K.