Early last week, as I walked into my condo's elevator, I noticed something different; it was really bright in there now. After I pressed my floor's button I looked up and saw that all 8 of the PAR20 halogen light bulbs were replaced with new ones that clearly weren't going to let anyone hide behind any areas previously darker with the old lights.
Curious, I emailed the landlord and did some research on kinds of brighter light bulbs. After about waiting a week for my landlord to reply, "Yes, we replaced them last week with LED bulbs. And although some tenants may find them to be too bright for comfort, they're more efficient lighting and the condo management board ordered them.", he confirmed what I learned just after a few minutes Googling and a little bit of digging.
So, after learning more about the basic benefits of replacing older types of light bulbs with LED light bulbs, I thought I'd share a LED conversion formula I discovered to show just how much you could possibly save over time simply by replacing the lights in your house or commercial building. One thing to note is buying LED bulbs isn't exactly considered to be cheap. So with this calculator, my hopes is that you learn why people are doing it and hopefully it will help you find another way to save money on your energy bill every month especially in tough financial times like today.
LED Conversion Formula
(((Old Bulb Watts - LED Bulb Watts) x # Qty of Bulbs x 12 Hours x 365 Days) / 1000 kilowatts) x Avg. cost per kilowatt
Let's say you're replacing 10 x 60W incandescent bulbs with 15W LED bulbs. The difference in watts is 45W. I'm going to do this one bit at a time to give you more resolution into what's happening.
45W x 10 Bulbs = 450W (difference in the amount of energy to power 10 bulbs)
450W x 12 hours x 365 Days / 1,000 kW = 1,971 kiloWatts (total amount of saved energy in a one-year period if the bulbs are used for an average of 12 hours per day)
1,971 kW x $ 0.12 = $236.52
So, just how much money are you spending in unnecessarily just by not using LED bulbs? $236.52 PER YEAR. I consider that to be lot of money, especially knowing that i I could be saving it. Over a 2 year period you'd save enough money to pay for a second iPad :)
I ordered my first "set" of LED bulbs from a local company in town on Monday.