The led r63 60 36 degree dimmable p 4.9w 927 e27 reflector lamp from ledvance is a high-quality, energy-efficient led spot lamp that is perfect for a variety of commercial and residential applications. it is a direct replacement for traditional r63 halogen spot lamps, and it offers a number of advantages. · · · Quick, simple and safe replacement without rewiring · · Design, dimensions, luminous flux comparable to an incandescent or halogen lamp · · Low maintenance costs thanks to long lifetime · · No UV and near-IR radiation in the light beam · · Instant 100 % light, no warm-up time · · LED alternative to high voltage halogen lamps · · High color consistency: = 5 SDCM · · Dimmable