Based on Lumen per watt Ratio what is more efficient to operate, MH or HPS?
A. HPS gives a higher lumen per watt ratio than metal halide and the bulbs often last up to twice as long. The 600 watt HPS has the highest lumen per watt ratio of any HID bulb. But for growing MH has a higher PAR value than HPS but often isn’t enough in the red range of the spectrum, this is why a mix of both is required for optimal growth. Or the use of full spectrum bulbs is replacing mixing the MH with the HPS. The bulb manufacturers are doing this for you. Back To Top • Q. Can I run a 1000 watt MH bulb wired up to a socket and just plug it in my wall plug? A. Absolutely NO, NO and NO!!! You have to use a 1000 watt MH ballast to power this lamp. The power coming out of your wall must be transformed to usable voltage by the lamp. This is the job of the ballast. Back To Top • Q. What should my light cycle be for growing indoors? A. Since plants all have a different requirement of light that will depend one what type of plants you intend to grow. The best thing to do would be research
