E27 4 w led reflector bulb r63 luminous colour 2 600 kelvinsthis led reflector bulb has the same dimensions as conventional r50 spotlights but you can save up to 90 energy using this led reflector bulb instead of a conventional spotlight up to 40 w the led bulb does not just impress in terms of energy efficiency it offers very pleasant warm white lighting at 2 600 kelvins it shines at full brightness as soon as it is switched on it offers very good colour rendering at ra80 and it has a