Yes. It is a "square wave" ballast.
That is what a low frequency ballast puts out. A square wave. That is the key to the new technology. It allows the bulb to run hotter and steadier to keep the new gasses ignited.and the new bi-pin base is to control distortion from vibrations inherent in a screw in mogul design.
The old cmh bulbs like the 400 ge do not have near the intensity per watt as the new 315. Or the new base, ballast or gasses.
They are re-branded retail showroom lighting. The new bulbs are horticulture specific.
A high frequency ballast like my Galaxy grow amp puts out a spiky uneven wave of power. And requires more hid watts to reach the same intensity.
Says square wave right in the description.
http://growershouse.com/growers-choice-horticultural-lighting-315w-se-cmh-complete-fixture
This is what happens when
@ttystikk opens his mouth and teaches anything. I knew it would come up again.
Why does anyone believe his bullshit? He never posts any proof like the rest of the internet Grow frauds.
I ask again to show me a 315 cmh with the new base and a ballast that is not square wave.
Now Phillips bulbs are tested to be highest par but others have higher uv. Growers house tested and showed all kinds of info.
http://growershouse.com/blog/cmh-315w-lamp-comparison-test-data-review/