The Ledvance led line 78 60 330 degree p 7.3w 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