The pics are awful because they were taken pre-blogging days and not intended to share. But you'll get the idea. I turned off the over head lights when taking the pics to better show the light distribution from the grow lights.
This method is using seedling trays with inserts. Notice my trays are not solid bottoms...that's because I never watered over head...I would dunk these into a fertilizer solution and allow the cells to float on top. As the soil imbibed and the cells began to sink ( several minutes ) I would pull the tray out and throw in another.
In our last home I grew these in the laundry room. I just made the frames from cheap lumber to hang the lights off. A couple of years before that, I started seeds in the guest bedroom in an apartment. I used inexpensive industrial wood shelving and hung the shop lights off that.
**TIP** I used one cool bulb and one warm bulb to mimic a full spectrum of light raising the light as the seedlings grew. I also had the light on a timer to simulate the longer days of spring.