Understanding efficacy is also important to understand why leds save you so much on energy costs.
Metal halide vs led for veg.
Efficacy lumens watt led vs metal halide.
Other lighting technologies lack the punch to produce tight node spacing shorter distances between branches on taller plants.
In this case we ll be comparing leds and metal halides but all bulb types can be quantified with this measurement.
Metal halide grow lamps are popular for use in vegetative growth phase of cannabis due to very high blue content of light.
They upgrade to g8leds when it comes time to flower.
The enhanced blue in metal halide does not lead to increased plant growth compared to hps in the veg stage.
They decide that they don t want to deal with the heat and electricity expense anymore.
Those who use hps lights most often use metal halide for vegetative growth as well since its light spectrum is better suited for vegging.
The high amount.
Mh grow lights metal halide are suited best for vegetative growth and hps grow lights are superior for flowering.
While either type can be used for the full growing cycle when combined using an mh grow light for vegetative growth and flowering under an hps grow light is the most recommended hid grow light setup because utilizing the.
This means that many growers with hid light setups have separate veg and flowering lights or at least multiple bulbs which adds to the expenses of maintaining an hid setup.
Metal halides deliver on average about 80 000 110 000 lumens per standard 1 000 watt bulb.
Efficacy is a measurement of how well a light source produces light.
Common wattages of metal halide grow lights fro cannabis include 250w.
Many people start growing with metal halide or t5 fluorescent or led lights.
Indoor grow specialists all over the world use blue heavy metal halide lamps mh for vegetative growth and switch to red heavy high pressure sodium hps.