This kit requires a hollow stalk. I have replaced the grain of rice bulbs with micro LEDs because the bulbs are out of production. The kit comes with a 9v battery holder with on/off switch, 3 solderless connectors, a honeywell 1sx1-T microswitch, and the light board. A PDF for the kit is available that shows how everything gets connected, just PM me and I will send it to you.