It actually depends on the size of your grow space. As a rule of thumb, you will need **30 to 40 watts per square foot**. That is, if you have only one plant, you will need only 30 to 40 watts of power. 60 to 80 watts if there are two, 120 to 140 watts if 4, and so on.

**Table of Contents**show

## Do grow lights increase your electric bill?

**A light system will increase your electricity cost** — the exact amount depends on the size of the system and the number of hours operated. However, since most grow lights are so energy efficient, you are getting huge amounts of light (and growing power) for your money!

#### How much electricity does hydroponics use?

Dominating the hydroponic energy use are the heating and cooling loads at 74,000 ± 10,000 kJ/kg/y, followed by the energy used for the supplemental artificial lighting at 15,000 ± 2100 kJ/kg/y. The circulating pumps contributed the least to the total energy use at **640 ± 120 kJ/kg/y**.

#### How much electricity does a grow light take?

A 20W grow light that’s on for 12 hours a day costs me **1.15USD/month**. A 40W grow light that’s on for the same number of hours will cost me 2.3 USD/month in electricity. The higher the wattage, the higher your electricity bill. All grow lights consume a certain amount of electricity.

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

Let’s say you have a 60-watt incandescent lightbulb and you are paying 12 cents per kWh of energy. Leaving the bulb on the whole day will therefore cost you: 0.06 (60 watts / 1000) kilowatts x 24 hours x 12 cents = approximately **20 cents in one day**.

#### How much do LED lights cost per month?

Brightness (in Lumens) | Watts | Avg. Cost / month* |
---|---|---|

650 – 850 | 7 – 10W | $0.26 |

1000 – 1400 | 12 – 13W | $0.39 |

1450 – 1700+ | 14 – 20W | $0.53 |

2700+ | 25 – 28W | $0.82 |

#### How much does a LED light cost to run?

LED Light Bulb | Incandescent Light Bulb | |
---|---|---|

Primary cost | $1.50 | $1 |

Cost to run second year | $1.30 | $8.89 |

Cost to buy and run for 3 hrs/day for a year | $2.81 | $8.89 |

Watts | 10 | 60 |

#### How many watts do LED grow lights use?

The average LED grow light draws about **32 watts to cover 1 sq ft for flowering**. Compare this to a typical HID fixture which rings in at 40 watts per square foot (assuming a 5′ x 5′ area, or 25 sq ft coverage area). Using an HID in a 4′ x 4′ will bring the power coverage up to 62.5 watts per sq ft.

#### How many watts does a 600 watt LED grow light use?

Actual Wattage – 600 watt LEDs generally use around **400 watts when running at full power**. The Optic 6 is a bit of an outlier, in that it uses more power (but also produces more output). Some of these lights are customizable and can be set to use less than full power.

#### Does UV light use a lot of electricity?

Currently, **most of these lamps operate at 300 to 600 watts per inch** with some newer systems using lamps that generate up to 1000 watts per inch. So a 30 inch UV bulb may be capable of an output of 30,000 watts.

#### How much power does a 150 watt LED light use?

CFL | LED | |
---|---|---|

Price (Rs) | Rs 150 | Rs 185 |

Power Consumed in 8 hours operation (Watt X 8) (P8) | 144 watt.hr | 96 watt.hr |

Monthly Power Consumption (P8 X 30) (M) | 4.32 kWh | 2.88 kWh |

Monthly Electricity Bill (Rs) (M X 10) | Rs 43 | Rs 29 |

## Are grow lights expensive to use?

The cost to run the lights per day is $0.2735236 or **$8.20 per month**. If I have an HID (high intensity discharge) light with a 600 watt bulb in it, using the same method of calculation, it would cost me $30.90 per month.

## Are LED grow lights expensive to run?

The average price of electricity in the US is 12.83 cents per kilowatt-hour, which equals $0.1283 per kwh. We will use this number for our calculation. Running our 730 watts LED light for 12 hours per day gives us a calculation of 8.76 kwh x $12.83 = **$1.1239 per day**.

#### How much electricity does a grow tent use?

According to the Northwest Power and Conservation Council (NPCC), indoor commercial cannabis production (also known as a cannabis grow room) can consume **2,000 to 3,000 kilowatt hours (kWh) of energy per pound of product**.

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

However, as a rule of thumb, you would need **200 to 300 watts of solar panels for every 1 kWh of daily energy that your grow lights consume**. For example, if your grow lights use 2 kWh of energy every day, you would need 400 to 600 watts of solar power to offset that energy consumption.

#### How much heat does a 1000w LED grow light produce?

Calculating Grow Light Heat Production – As stated earlier, this is true regardless of what kind of light it is – LED, HPS, MH, or any other. Therefore, a 1,000W HPS grow light (1,060W with ballast loss) generates **3,617 BTU per hour** heat.

## How much does it cost to run a 1000w LED Grow Light?

A 1000 watt Led grow light, running 18 hours a day over a 30-day period at a cost of **14.21 cents per kWh** will set you back $76,24.

#### How many watts does a 1000 watt LED light use?

1000w LED fixtures generally have an output equal to **900 watts** of HPS light, despite what many manufacturers claim.

#### How much does a 400 watt light cost to run?

At an average cost of 0.09 cents per kilowatt, a system of 1,000 400-watt Metal Halide fixtures costs **$41.22 per hour**. If the fixtures run an average of 730 hours every month (730 x $41.22), it ends up costing $30,090.60 every month or $30.09 per month in energy per fixture.

#### Are grow lights good for plants?

Red light supports flowering while blue light supports vegetative and structural growth. However, **both types of light are essential to supporting balanced, healthy plant growth**. Grow lights provide indoor plants with the type of light that they need in order to photosynthesize.

#### How many solar panels do I need to run a 1000 watt light?

How many solar panels do I need for 1000 Watts? Most 1000 watt solar panel systems consist of **5 solar panels**, each of which is 200 watts, or 10 solar panels, each being 100 watts. Simple math will tell you that adding together the wattage of panels in each system will achieve 1000 watts, or 1 kilowatt.

#### How many watts do I need to grow tomatoes?

For high-light plants like tomatoes you will want to achieve around **40 watts per square foot** for optimal growth and fruit production. For low light plants, and small leafy plants like herbs and lettuce, you will only need to achieve about 25 to 30 watts per square foot.

#### How much electricity does a 1000 watt HPS light use?

Wattage will determine how much power grow lights consume — and how much it will cost to operate them. For example, running a 1,000-watt HPS light with about 1,050 watts of actual power draw for 12 hours a day will consume **4,600 kilowatt-hours (kWh) a year**.

#### How much does it cost to run a 600 watt grow light UK?

So this means that your ‘600w’ light will cost you a total of **£84.42** in electricity over a ten week cycle.

### Videos

Do Gaming LED Lights Use a lot of Electricity?LED Grow Lights Use HOW MANY WATTS?!Grow Lights Explained CFL LED and HPS easy and cheap to efficient and expensive### Other Articles

Do you need 2 plants to grow squash?

Is gardening part of landscaping?