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Old 03-08-2009, 01:35 AM   #9
steroiduser88
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eh mh is metal halide. led lights on plants are not recommended. as they offer only a single wavelength of light. if u were to use led on plants go for the rainbow led which would allow plants to efficiently utilise all the different wavelengths.

apparently red light is best for plants but whose to say right?

led lights gives very high lumens and is very energy saving as it takes less energy to power a single narrowed portion of the light spectrum but ultimately MH is the best as they give u very high energy levels for a wide variety of the light spectrum, also give u the shimmering effect :P (some ppl are crazy about it haha for me i just open the curtains lol) hence mh is more energy inefficient.

MH is very hot as well. hence for plants u would need to add in an exceptionally higher rated chiller hence increased energy expenditure as well. for leds due to their high energy efficiency they produce very little heat. hence can get a lower HP (horsepower) chiller.

e.g. led lighting usually utilise hundreds of small leds bulbs or a few 12v rated bulbs. all these lights turned on for a whole day is warm to the touch. Metal halides on the other hand, due their high energy inefficiency meaning lots of energy gets converted to heat. (energy is neither created nor destroyed) is searing hot after a few hours. temperature his 4 digits 0.0

so in the end its up to u and the depth and BREADTH of ur pocket. and well the passion of aquatic scaping in ur heart

happy planting bro
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