Ask the Experts

How Much Energy Do LED Bulbs Save?

We often get this question from our customers wanting to know what they can expect in savings on power usage, as they evaluate replacing incandescent lights with LED bulbs. This is important because many municipalities may be eligible for added tax breaks and grant money for converting to LED bulbs.

Our answer: LED lamps are highly energy efficient, emit very little heat, and use at least 75% less energy, often lasting up to 25 times longer than incandescent lighting. Source:

But, how do I calculate the actual amount of power saved?

LED bulbs use 1.4 Watts versus 5 Watts of a standard incandescent light bulb – a power savings ratio of 3:1. A simple calculator we use to estimate the energy savings of converting from a standard C9 incandescent bulb to an LED bulb can be found at:

Besides energy savings, there are numerous other benefits to using LED bulbs!

Easy to replace

LED lamps can easily replace 40, 60, and even 75 Watt incandescent bulbs, work with standard 120 volt hookups, and are equipped with the transformer/driver built directly in to the bulb casing. This is done to reduce the main voltage to the desired level relative to the bulb. And, LED  also saves on maintenance, as they’re virtually unbreakable … besides being easy to replace, as we just noted.


Under normal, commercial use, an LED lamp will last at least 5 years or more versus the normal 2-year life expectancy of a standard incandescent bulb. That says a lot.


Unlike traditional incandescent bulbs that are painted on the outside of the bulb itself – and inevitably crack and peel as soon as you hang them – LED bulbs have the acrylic color dyed directly into the bulb. And, LED lights emit light in a specific direction, reducing the need for reflectors or diffusers that can trap light. Finally, while it’s important to read the Lighting Facts Label to make sure the bulb is the right brightness and color for your intended use, when chosen carefully, LED is “the choice” to enhance any display! 

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