# What Grow Lights Use The Least Electricity?

In order to produce the same amount of light, an LED grow light uses less electricity than aCFL grow light.

## Do grow lights raise electric bill?

Depending on the size of the system and the number of hours it is open, a light system will increase your electricity cost. Since most grow lights are energy efficient, you are getting a lot of light for your money.

## How much does a grow light add to electric bill?

A 20W grow light that is on for 12 hours a day costs me 1.15USD per month. The cost of electricity for a 40W grow light that is on for the same number of hours is 2.3 dollars per month. Your electricity bill will go up if the wattage is higher. There is a certain amount of electricity used by grow lights.

## Do grow lights consume a lot of electricity?

It depends on the amount of space you have. 30 to 40 watt per square foot is the minimum requirement. If you only have one plant, you’ll need 30 to 40 watt of power. 60 to 80 watt for two, 120 to 140 watt for four, and so on.

## How much electricity does a small grow light use?

This means the light consumes a lot of power. If you divide the number by the number of hours the light is on, you get 18 hours a day.

## How much does a 1000 watt LED grow light cost to run?

The answer is what it is. The cost of a 1000 watt Led grow light is 14.21 cents per kWh over a 30 day period. It can cost a lot to run grow lights.

## How much do LED grow lights cost to run per month?

The cost to run a PhytoMAX-2 1000 12 hours per day at a utility rate of \$0.12/kWh is \$65.36 per month. It takes 12.60 kWh per day for the PhytoMAX-2 1000 to run.

## How energy efficient are grow lights?

Older indoor lighting technologies use more power than energy- efficient ones.

## How many solar panels do I need to run a grow light?

A rule of thumb is to use 200 to 300 watt of solar panels for every 1 kWh of daily energy that your grow lights consume. 400 to 600 watt of solar power is needed to offset the 2 kWh of energy used by your grow lights.

## How much does it cost to run a 60 watt LED light bulb for 24 hours?

You are paying 12 cents per kWh for your 60- watt bulb. The cost to leave the bulb on the whole day is approximately 20 cents.

## How long should I keep my grow light on?

Grow lights need to be on for at least eight to ten hours a day. Depending on the conditions, this can be as long as 16 hours. It’s best to use an energy efficient type of grow light when you have to leave it on all day. The grow light should be above the plant.