This videos may be of interest:

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  • Product Review: SANSI LED Light Bulb 40w Equivalent
  • Light Bulb Lineup: Comparing Incandescent Bulbs with CFLs and LEDs
  • 40W Equivalent LED Design Demonstration - 40WLEDBULBGEVB
  • 40 Watt Equivalent LED Candelabra Bulb
Here some other interesting products: