I have the light in a hole I cut in the tote lid. I was thinking the one bulb would maybe be enough for 4 seedlings in solo cups? If I can get away with doing more someone please let me know! The bulb is 120 volts, 14watts, 800 lumen, 60hertz. My tote is a standard sized tote, I also cut a pretty small, square hole in the side too and I'm planning on putting a fan up to that hole for some fresh air. I plan on throwing them outside by the end of April.