Unlike some other powerful ESLs that I have in use, the Tornado with 23 watts is at once bright. There are not half a second delay and only a small Nachhellen within the first 30 seconds of operation. The lamp is bright, but not as bright as the promised 110W of an incandescent bulb. I think it is between a 75 and a 100W bulb. The light is quite enjoyable because of 2700K.