Nice write up!
Just a few comments though. Incandescent fixtures are not suitable for growing plants since they don't produce a lot of light, despite the wattage. Fluorescent and compact fluorescent bulbs put out far more light per watt than incandescent bulbs do and are thus suitable for growing plants.
Also, I was wondering why you wired the bulbs in series? Wouldn't this make the second bulb dimmer? I'm not a hundred percent sure, bur I think lighting is always done in parallel.
Just a few comments though. Incandescent fixtures are not suitable for growing plants since they don't produce a lot of light, despite the wattage. Fluorescent and compact fluorescent bulbs put out far more light per watt than incandescent bulbs do and are thus suitable for growing plants.
Also, I was wondering why you wired the bulbs in series? Wouldn't this make the second bulb dimmer? I'm not a hundred percent sure, bur I think lighting is always done in parallel.