Spectra Alva ALVA-40A19E26-30WW Omnidirectional LED Light Bulb 7.5W(40W Replacement) Energy Star qualified 7.5W omnidirectional light through Spectra's 360Degree OmniBeam light engine with Cree X-Lamp emitters Listed to UL 1993/8750 standards Best-in-class dimming performance (down to 5% on compatible dimmers) powered by Texas Instruments microprocessor 100% ANSI A19 shape compliance means accurate fitment with standard fixtures utilizing medium base E26 sockets Shatterproof polycarbonate housing and aircraft grade 6063 extruded aluminum heat sink for unsurpassed thermal management