Energy savings up to 78% compared to similar lumen output incandescent. Compact T2 tube design with maximum overall length less than 4.5 in. (114 mm). Instant on, flicker-free. Living spaces versions (LS) have enhanced rendition of the strong red (CIE-R9) generating richer, warmer red color tones closely matching incandescent. TCLP-compliant to meet sustainability objectives.