Led grow lights of different power ratings will perform best at different distances.
Best led wattage for growing weed.
The size of your grow space for led and hid grow lights the minimum recommended wattage per square ft of space is 50w.
Each hid bulb can consume anywhere from 100 watts to 1 000 watts so it depends on the size of your grow but switching to led grow lights can save you 50 to 70 in actual power consumption.
The viparspectra v300 grow light is certainly among the most successful budget leds for growing cannabis plants.
Roleadro galaxyhydro series led grow light.
One 600 watt led grow light is about right for a 3 by 3 space.
If you re sick of wasting time searching online for quality info on how to grow weed led or hid i highly recommend growing elite marijuana by ryan riley.
It jumps to 150w for fluorescent lights.
50 watts per square foot means that.
Dimming functions allow you to mimic shorter daylight.
A 2ft long x 3ft wide grow space would require a 300w led grow light.
Today s led models are much better for growing cannabis than the ones available even a few years ago.
Make sure that the light can draw 50w from the wall not the combined capacity of the led s example.
As a general guideline you should try to get a minimum of 50 watts per square foot with a led grow light.
A 400w led grow light will cover a 2 5 x 2 5 ft space.
A 900w led grow light will cover a 4 x 4ft space.
This lighting option is an affordable and effective option that comes with both hps and mh bulbs for use during various stages of growth.
Typically one 1000 watt led grow light is the minimum for a 4 by 4 grow area.
This guideline is by no means perfect but will help to get you started.
However you could technically put up to 4000 watts over a 4 by 8 growing area if you could manage the heat load.
For example a 200w led 200w true power draw not an equivalent wattage would yield about 100 200 grams on average or 3 5 to 7 ounces.
Mid range lights such as a 600 watt or 900 watt led grow light should be 14 36 inches from the top of your plants.
Ipower 600 watt hps dimmable grow light.
This choice has short circuit protection against excessive currents that can shock you.
The sales page is annoying and some of the bonuses aren t all that useful but the book itself is the best guide i ve seen on growing.
Among these are five led variations on the red spectrum four blue variations one infrared diode and 3000k warm white as well as 7500k cool white leds.
It includes 60 high intensity bridgelux epileds chips in 12 different colours.