re: Best Grow Light Options for seed-Starting

I am using shop light fixtures with 2 different lumen bulbs...can't remember now what they are.  My starts do ok but I wonder if I am using the correct lumen and if my area is warm enough when I do Starr seeds.  My set up is in the unfinished basement by a small window.   This past year I did wrap plastic around the shelves to help retain a little heat.