The output of a 15 watt OttLite bulb is roughly equivalent to that of a 60 watt incandescent bulb. Think of all that energy you're not paying for! What will you do with that extra change? Maybe grab some gear for your favorite craft or hobby—because with an OttLite bulb you'll enjoy crisp colors and clear details. So no matter what it is you love to do, with our lowheat, lowglare illumination you can enjoy it longer.