HPS VS SUN VS LED VS CMH

I created this for informational purposes, images used in this article have been sourced via google. In this article we will cover spectrum analysis. We will start by showing the difference between the various types of horticultural lighting in today’s market.

HPS

Overall the most commonly used form of light used

in the horticultural industry. Growers that use HPS

lights achieve an average of ½ a gram per watt yield.

This is due to the lack of spectrum your plant truly

Needs to thrive.  No harmful UV or radiation though

10,000 - 24,000 hour bulb replacement intervals.

Omnidirectional (360o) which wastes light making them

Less Efficient. Bulbs are explosive and contain mercury.

High temperature output leading to more waste in the

Form of AC supplementation.




SUN


Where do I start haha. This is obviously the best

Choice for any grower for only the most obvious

reasons. The sun is natural and free. The sun offers

the fullest and largest spectrum. However, plants do

not love all the spectrums the sun provides. IR and

certain forms of UV can be harmful to your plant.

Not saying the sun is bad for your plants by any

means. The sun will always reign supreme.



LED


Truly the future in the horticulture industry.

Growers that use this style of lighting can achieve

A whopping 1-1.75 gram per watt yield. This is due to

the full spectrum of light high-power LEDs emit.

50,000 hour replacement intervals. Directional lighting (180o) wastes less energy. Runs at a significantly lower temperature than Traditional lighting. Decreased risk of fire. No cooling necessary and water resistant





CMH


This form of light runs the same way as

traditional metal halide lights, only they

have ceramic bases. Run cooler than MH

and HPS. Omnidirectional (360o) which wastes

light making them Less Efficient. Bulbs

are explosive and Contain uranium hexafluoride

which can cause mutations, cancer, birth defects.

Highly corrosive. It is radioactive!!!


Why do they explode?


Ceramic Metal halide lamps contain high-pressure gases in the arc tube. In the case of non-passive failure, the pressurized arc tube within the lamp causes the explosion. When the arc tube explodes, molten glass can fall from the fixture, which presents an obvious issue if a fixture is installed above flammable materials.




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