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Thread Starter 

Something İ had missed previously - a different style of lamp which uses less power, has a very long life and uses no mercury.

Benefits of Fluorescent Induction Lighting: from http://www.trirlighting.com/2009/12/benefits-of-fluorescent-induction-lamps/

Fluorescent induction lamps are very similar to conventional fluorescent lamps. Mercury vapor in the discharge vessel is electrically excited to produce short-wave ultraviolet light, which then excites the phosphors to produce visible light. American Induction lamps use solid mercury instead of a vapor allowing the mercury to be recycled when the bulb is no longer functioning.

While still relatively unknown to the public, these lamps have been available since 1990. The most common form has the shape of an incandescent light bulb. Unlike an incandescent lamp or conventional fluorescent lamps, there is no electrical connection going inside the glass bulb; the energy is transferred through the glass envelope solely by electromagnetic induction.

Benefits of Induction Lighting

 

  • Long Life – 100,000 hours
  • Color rendering – 85 CRI
  • Color Temperature – 2,700K-6,500K
  • Energy Efficient – 85+ Lumens per Watt
  • Lumen maintenance – 70% of its light output at 100,000 hours
  • Maintenance costs – go 10 years with out a change out
  • Instant on Capability – Can be used with photocell or motion sensor
  • High Output – 70W to 400W
  • No flickering, No Strobing, No Noise
  • Minimal Color shifting
  • Starting temperatures as low as -40 degrees farenheit
 FAQ's about induction lighting from Philips:    http://www.trirlighting.com/2009/12/benefits-of-fluorescent-induction-lamps/