Halco’s T2 CFLs have Maximum light distribution achieved through compact design. They save up to 80% in energy costs compared to Incandescent lamps. The tri-phosphor coating enhances lumen efficacy and color rendering. UL approved for use in totally enclosed fixtures up to a max ballast case temperature of 75C for E12 and E26 bases; 90C for GU24 bases. Use in any setting where you would normally use incandescent bulbs such as recessed fixtures, table lamps, track lighting or ceiling lighting.