I know this is an old thread but I’ll chime in.  I purchased one of these back 2020.   Actual watts 150. I replaced a 1200 Phlizon which I’m not fond off. The Mars Hydro TS1000 seems to do alright. I ran both of the lights mentioned above in a 3’x3’x7’ for a grow. Then I pulled the Phlizon and did another grow with just the Mars Hydro.  No difference . Much cheaper on electricity for using just the Mars. Same outcome so now I’m going to try another grow with just Mars. I’m going to put the light a bit closer to the plant once the seedling gets taller than 3”.  Overall I like the actual bright. White color.  The Phlizon wasn’t worth the $$$$.