The LED is for my mother plants. Keeps them producing with out too much use of electricity. I produce more clones than I can handle, so I use the LED over HID to slow the growth down in them.
I also use the gas lantern routine light schedule to further slow down my mothers production rates. Saves on electricity and still gives me more than enough clones.
Tried a 1200W LED in my 4x4, but the yields were much lower than the HID. So I kicked the LED to the curb and went back to my work horse. Results spoke for themselves.