Philips A21 3-way bulb replacment

Philips A21 3-way bulb replacment

3-Way Bulb Equivalent

The Philips 3-Way A21 Bulb is the best replacement for 3-way incandescent bulbs. It comes in two varieties: 40-60-100 Watt Equivalent and 50-100-150 Watt Equivalent. The Philips products match most of the specifications of a traditional bulb while requiring much less energy and lasting much longer.

40-60-100 Watt

50-100-150 Watt


Technical Information

Philips 40-60-100W Replacement A21 Bulb

  • Brightness: 450/800/1600 lumens
  • Life: 25,000 hours / 22.8 years (3 hours/day)
  • Color temperature: 2700 K
  • Energy: 5/8/18 watts
  • Color rendering index: 80
  • Estimated yearly energy cost: $0.96 (3 hours/day, 11 cents/kWh)

30-70-100 Watt 3-Way Incandescent BulB

  • Brightness: 305/995/1300 lumens
  • Life: 1,500 hours / 1.4 years (3 hours/day)
  • Color temperature: 2700 K
  • Energy: 30/70/100 watts
  • Color rendering index: 100
  • Estimated yearly energy cost: $8.43 (3 hours/day, 11 cents/kWh)

Philips 50-100-150W Replacement A21 Bulb

  • Brightness: 620/1600/2200 lumens
  • Life: 10,950 hours / 10 years (3 hours/day)
  • Color temperature: 2700 K
  • Energy: 8/16/22 watts
  • Color rendering index: 80
  • Estimated yearly energy cost: $1.93 (3 hours/day, 11 cents/kWh)

50-100-150 Watt 3-Way Incandescent BulB

  • Brightness: 615/1540/2155 lumens
  • Life: 1,500 hours / 1.4 years (3 hours/day)
  • Color temperature: 2700 K
  • Energy: 100 watts
  • Color rendering index: 100
  • Estimated yearly energy cost: $12.05 (3 hours/day, 11 cents/kWh)