Brighten your home or business with these Philips 40-Watt 4 ft. T12 Natural Light Linear Fluorescent ALTO Light Bulbs. These indoor, bi-pin fluorescent bulbs are designed to fit your everyday, general-purpose lighting needs. They simulate natural full spectrum light, for any room in the house.

• Brightness: 2500 lumens
• Estimated yearly energy cost: $4.82 (Based on three hours/day, 11c/kwh. costs depend on rates and use)
• Life: 21.9 years (Based on three hours/day)
• Light Appearance: 5000k (natural)
• Energy used: 40 Watt
• Lumens per watt: 62
• For indoor, commercial and residential use
• Simulates natural full spectrum light, for any room in the house
• T12, Bi-pin
• Contains mercury: yes (for more info on cleanup and safe disposal, visit: epa.gov/cfl)
• Brighten up with the right light fixtures. Check out our Buying Guide for helpful tips.
• Click here for more information on Electronic Recycling Programs