Light­ing

HOUSE­HOLD EN­ERGY CON­SUMP­TION: 8%

Element - - Wellbeing -

POOR

In­can­des­cent or tung­sten bulbs: in­ef­fi­cient, con­vert­ing just 5% of the en­ergy they use into light. The re­main­ing 95% is turned into heat. Short life­span (1000 hours).

BET­TER

New gen­er­a­tion halo­gens: Lower wattage and more ef­fi­cient, new gen halo­gens will last twice as long as in­can­des­cent and are 30% more ef­fi­cient CFLs (com­pact flu­o­res­cent lights): CFLs use 80% less en­ergy and last between 6,000 and 15,000 hours. Sav­ings can amount to $111 over the life of the bulb.

BEST

LEDs: Five times more en­ergy ef­fi­cient than in­can­des­cent light bulbs, and su­per cheap to run, an LED can last between 50,000 and 100,000 hours.

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