Results:

Payback for your investmentThe amount of time necessary to save as much money as you initially invested. This is your "break-even" point. Payback for your investment in:	0.48 months
Return on investmentA ratio of money gained or lost relative to the amount of money invested, expressed as a percentage. For example, if you invest $5 and receive $10 from your investment, your return on investment is 100%. Return on Investment	4,917%
Energy saved per bulb	45 watts
Money saved over life of bulb	$ 45.00
Number of existing bulbs used for each replacement bulb	13.33 bulbs
Difference in cost between one replacement bulb and existing bulbs replaced	$ -5.17
Total savings from one replacement	$ 50.17
Gross savings from all replacements	$ 5,016.67
Investment in Replacement BulbsThe difference in cost between your existing bulbs and the replacement bulbs.Investment in replacement bulbs	$ 100.00
Investment in installation	$ 0.00
Total investment	$ 100.00
Net savings	$ 4,916.67
Net savings per hour	$ 0.49
Net savings per week	$ 48.18
Net savings per month	$ 208.79
Net savings per year	$ 2,505.53