Broccoli Has Sprouted

My broccoli starts have just sprouted today and I have placed them under a fluorescent lamp. Tomorrow I will have to put the shelves up in the south facing window of the clock shop. I need to make a fixture for the lamp to be placed above the starts. The weather is beginning to cool down a bit.....40s and 50s with night time temps in the 30s. I'm still waiting for the big freeze.