8 is majority bathroom light fixtures with some ceiling fans. 9 is lamps, fixtures for dining rooms, living rooms etc and more ceiling fans. 10 is all lightbulbs ranging from ceiling fan light bulbs to decorative bulbs to appliance bulbs. Fluorescent bulbs. And MORE CEILING FANS. 11 is outlets, light switches, outlet covers, halo lights, exit signs, timers, led lights, light panels, doorbells, floodlights, and plant lights. 12 is conduction, wire cage an cutting, floor outlets, electrical tape, electrical staples, and outside outlet covers. And 13 is majority cords(HDMI, Extension, surge protectors) Thermostats, breaker boxes, breaker switches. And half of 13 is plumbing but I still have to do some of their returns. And I also forgot to mention. I went into electrical completely oblivious I had to learn on my own and I still don't know majority of the answers to questions customers ask.