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Efacency of LED lamps compaired to others
- Lumens per watt
- 14-17 Incandescent
- 25-45 LEDs in production
- 150-161 LEDs experimental
- 50-70 CFL or Compact Fluorescent Lamps
- 100 T-8 Fluorescent 1-inch diameter
- ??? T-12 Fluorescent 1-1/4 inch Diamater
- 16-21 Halogens
http://www.ledlight.com/t12-t8-led-tube-light-4foot-15-watt.aspx
4-ft T-12 LED Tubes are $49.99 It might cost less long range, than replacing the ballast which costs about $25.00 plus labor. We do have to remove the old ballast.