The Ledvance led line 78 100 300 degree p 11.5w 827 2700k r7s double ended lamp is the ideal replacement for your old R7s halogen lamp. It offers a number of advantages over traditional R7s halogen lamps. · · · Fits into most R7s luminaires thanks to excentric base · · Good all-around light emission · · Long lifetime of up to 15,000 h · · Lower thermal output (compared with the standard reference product) · · Four year guarantee · · LED alternative to conventional R7s lamps · · Good quality of light; color rendering index Ra: = 80; constant chromaticity