5.0 inch diameter fits most recessed downlights. Replaceable 13 watt quad lamp for lower life cycle costs than 10,000 hour throw-away designs. •Replaceable 13 watt quad lamp. •Ten year warranty. •15 watts draw includes 2 watts for the ballast. •Light output equivalent to a 75 watt incandescent floodlight. •Perfect for replacing incandescent floods in recessed downlights.