our LED bulbs reach full brightness immediately. Our compact fluorescent energy saving bulbs take longer; this is one area where hard data are of little use as perceived brightness is highly subjective and also dependent upon the environment. What we can say is that our spiral energy efficient bulbs are brighter than the other designs and that most people will perceive higher wattage bulbs as reaching full brightness faster.

For most of our products customers will not notice the warm-up time. The exceptions are the highly compact GU10 compact fluorescent bulbs where a slower warm up is essential to prolong the life of the bulb. Where instant full brightness light is required in a GU10 fitting then we recommend LEDs especially for halls, stairwells and landings.