ECO Halogen True Daylight Lamp utilizes rare earth elements in the glass to filter out dull yellow light. Shows details clearly and colors more accurately. Produces less glare and reduces eye strain. Available in a 43 watt, 53 watt, or 72 watt option in Clear or Frost with 2900K color temperature. 43 watt ECO equivalent to a 60 watt incandescent. 53 watt ECO equivalent to a 75 watt incandescent. 72 watt ECO equivalent to a 100 watt incandescent. Average lamp life 1000 hours. Fully dimmable. Energy Saving. Compliant with EISA General Service Incandescent Standards. Sold as a 2-pack.