# How many plants can a 400 watt HPS grow?

## How many plants can a 400 watt HPS grow?

Generally, grow lights that use 200-400w’s can grow around 1-3 plants per light; lights that use 500-700w’s can grow around 4-5 plants per light; and lights that use over 800w’s of power can grow 6-8 plants per light.

How far should 400w MH be from plants?

How far should a 400w HPS be from seedlings? For 400W HPS, the best distance from seedlings is between 12 inches or 30.48 cm (closest) and 19 inches or 48.26 cm (furthest).

### How much does a 400w HPS yield?

Best marijuana yield indoors In theory, the math is simple. 400 watts of an HPS grow light could lead to 400 grams (14 ounces) of weed at the end of the day. 1200 watts would lead to 1.2 kilos (42 ounces) of marijuana, etc.

How many watts do I need to grow 4 plants?

If so, the charts below will help you determine how much energy (by wattage) your plants require for flowering….Recommended assuming 4.0 sq ft/plant.

# of Plants Square Feet Wattage from Wall
1 4 120 to 140 watts
2 8 240 to 300 watts
4 16 500 to 650 watts
6 24 700 to 860 watts

#### How many square feet does a 400-watt HPS light cover?

around 16 square feet
400-Watt HPS grow lights are the most commonly used HPS grow bulb, covering around 16 square feet and capable of producing high yields.

How many grow lights do I need for a 10×10 room?

How many plants per LED grow light?

Grow Room Size Square Feet Recommended # of Plants in Veg
6′ x 6′ 36 Up to 36
4′ x 8′ 32 Up to 32
8′ x 8′ 64 Up to 64
10′ x 10′ 100 Up to 100

## How many lumens is a 400 watt HPS?

As a side note: A 400-watt HPS luminaire initially supplies about 50,000 lumens. The rule of thumb is to reduce the HPS lumen output by half to determine the LED lumen output, which would be 25,000 lumens in this case.

How far should T5 be from seedlings?

When it comes to hanging your T5 grow lights, you’ll want to hang them around 12 to 18 inches above your plants. Unlike HIDs that you’d need to hang 18 to 20 inches above plants, and LEDs that need 20 to 24 inches of space above plants, T5s don’t have the same intensity as other lights.

### How much space does a 400w HPS cover?

400-Watt HPS grow lights are the most commonly used HPS grow bulb, covering around 16 square feet and capable of producing high yields. 600-Watt HPS grow lights are the most efficient HPS grow lamp. 600W HPS grow lights produce more light output per Watt used than other wattages and cover around 36 square feet.

How many lumens does a 400 watt HPS put out?

#### How many watts do I need for a 4×4 grow tent?

Just remember that one square foot of grow tent space needs roughly thirty-two watts of real wattage. According to research, a 4 x 4 requires around 512 watts, but the wattage can range from 500 to 650 watts.

How many plants can I grow under 300W LED?

So 300W can coverage about 2*3ft area, in general, each cannabis plant you grow requires at least 1sq ft of space. So under 300W, you can grow about 1-6 plants.