Primary Outcomes (end points)
Subject's belief about how much a 4W LED light bulb saves in annual electricity costs compared to a 40W incandescent light bulb.
Self-reported electricity price of the subject.
Self-reported number of hours a subject uses a light bulb on average.
The number of LED, CFL, halogen and incandescent light bulbs purchased.
The average energy efficiency level (wattage) of the products purchased.
The price elasticity for all four light bulb technologies (incandescent, halogen, CFL, LED).
The probability of purchasing.
The probability of purchasing a light bulb.