These Daylight 5000K Compact Fluorescents are great for reading and all kinds of task work because they reproduce the same wavelength of light as the sun. Makes things easier to see with less eye strain. Replace your 60 watt bulbs with 15 watt CFL and save 75% in energy costs. How easy can it be? Saving money is as easy as changing a light bulb. These 15 watt bulbs produce a cool white light that simulates the sun. Use these to replace your energy wasting 60 watt bulbs. They practically pay for themselves in months and save 45 or more during their life. So instead of paying the utility company you can start paying yourself. With its Integrated Circuitry it has an instant soft-start. No more waiting for them to warm up. With an 10,000 hour life, you'd need 10 regular 60 watt bulbs to equal it. Less trips to the store, less hassle, more savings - all in a light bulb!