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- By the Laws of thermodynamics, only 40% of the thermal energy in coal can be converted to electricity:
- 1 ton (2,000lbs) of coal yields 40% x 6,150kWh
= 2,460kWh/ton of coal
- Each our tube can save 0.024kW when compared with a T8, which saves 210.24kWh per year, or 171lbs of buring coal
- Annual environmental saving by each our tube
 Operating 1 tube for 24/7 is equivalent to planting 9 TREES in order to photosynthesize 444.51lbs of carbon dioxide in a year
*Calculations are based on the figures from Union of Concerned Scientists & carbonfootprint.com
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