Pulse start metal halide is a new technology. The bulbs are brighter, last longer and have better maintenance of lumens, can be run 24/7 without having to shut down. It is hard to find ready made ballasts for pulse start, but the kit form is very cheap, and is available in huge numbers of different wattages. The 400w metal halide horizontal lamp from Venture puts out 40,000 lumens initially, lasts 20,000+ hours, has excellent lumen maintenance,
and goes for about $32. with a very nice spectral output, good blue, lots of red as well, for excellent PAR. Although I don't have the PAR figure, this lamp follows the chlorophyll absorption spectral activity nicely. Also, the ballast kit is only $50.
Does anyone have any plans for what to use for the enclosure, how to mount the stuff, how to wire it together. This would be a great project, because
more lumens per watt is what we need.
and goes for about $32. with a very nice spectral output, good blue, lots of red as well, for excellent PAR. Although I don't have the PAR figure, this lamp follows the chlorophyll absorption spectral activity nicely. Also, the ballast kit is only $50.
Does anyone have any plans for what to use for the enclosure, how to mount the stuff, how to wire it together. This would be a great project, because
more lumens per watt is what we need.