If it is efficiency you re after hid is probably the best grow light for marijuana available.
Best light to use for growing weed.
The viparspectra v300 grow light is certainly among the most successful budget leds for growing cannabis plants.
If in doubt always keep leds further away.
Blue ranges from 400 500 nm the ideal value would be 460 nm.
This full spectrum of light helps the best led grow light to provide all the necessary light that your indoor marijuana plant needs which it would get from natural sunlight if it was on the outside.
It includes 60 high intensity bridgelux epileds chips in 12 different colours.
Your cannabis plants will grow stronger while using grow lights with higher ratio of blue light.
That is as long as you don t mind the increase in your electricity bill.
The light that it produces falls into a perfect range of the color spectrum for the growing phase of cannabis.
Furthermore the paneling design of this led grow light system cuts down on excess heat while ensuring your plants still thrive.
Follow the chart below as a general rule of thumb.
Blue light for cannabis vegetative stage the blue light will be most prominent during the summer months as the sun is high and very bright in the sky.
The full spectrum includes the yellow light blue light red light white light uv and ir as well.
There are three main types of lights you can use to grow cannabis.
Leds high intensity discharge hid bulbs and fluorescent lights.
High powered lights such as a 1500 watt 2000 watt or 3000 watt led grow light should be raised to 24 36 above the canopy.
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.
Light wavelengths blanket your plants evenly too thanks to the 12 bands of lights.
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.
Viparspectra is one of the best brands of led.
Then again if you have a grow space of less than five square feet fluorescent light is enough when your plants are small.
Metal halide grow lights produce light by arcing an electric current through mercury gas mixed with some sort of metal iodide such as thallium thorium or sodium.