This energy saving lamp produces with little heat (they can be in operation or touch) a relatively large brightness. If I had more space I would recommend more four energy-saving lamps with 23W each, which brings (I have nothing to measure it remains subjectively) more. But since I do on small space more energy-saving lamps on a multi-lamp socket have - both 85W and 65W and smaller space reasons 30W "Pears" in the exchange in order to operate a video light, I am reasonably happy. Here again the essential detail: Subjectively, the 85W "bulb" does not appear much brighter next to the 65W "pear". The 65W "pear", see my reviews (65W energy-saving lamp). This was not available last. What under sunlight to understand is .... Well do not ask because the lamp manufacturer. There are so-called full-spectrum daylight bulbs. I would let it pass as daylight lamps times. Otherwise helps nix's always on the Kelvin (K) see details - then you know whether the lights have more blue (cold) or more warm (orange) is. (About the color temperatures in Kelvin I'm not a plan, click on questions such as Wikipedia).
