Restore your body’s natural rhythms with this 100 watt replacement bulb which uses only 25 watts of energy. The Biobulb is claimed to be the closest replication of sunlight meaning that this bulb can help improve your mood by increasing serotonin levels – ideal for sufferers of SAD. With 90% of our daily light exposure said to be artificial our serotonin levels dip and can have an adverse effect on our mood biorhythms sleep patterns body temperature and sex drive. Reverse this trend today by installing this energy saving mood enhancing Biobulb today! Product AdvantagesLasts up to 10 000 hours or seven yearsCombats causes of SADFlicker freeSave energy and moneyProduct DetailsScrew cap100 watt replacement 25 watt actualUses 75% less energy than a standard bulbRadiates less heat than a standard bulbProduct dimensions H13cm x L6cm x D6cm WarningUse only with 220 240 voltsIndoor fixtures must contain ventilation holesNot intended for use with dimming circuits