for sure, but i have to say they are a very little bit slower, smaller and less advanced with the SF2000 than what i m used to with the HPS at the same stage. Not sure if it's because the LED or because right after germination seedling weren't looking super healthy.
They are also very short this time so next time i'll try dimming the light to 60% to 80% the first few weeks.
Here a pic of the same strain day 18 with the HPS:
i tried a cool tube this summer for my HPS 250W because i had some heat issue, just droped the temperature from 1°C to 2°C wich was not enough, so finnally i switched to LED wich significantly imporved my issue with heat.