Creating a light bulb is now a multi-step process that involves both glassblowing and electrical work.

New items : Blown Glass Bulb, Light Bulb Base and Vacuum Pump

New recipes : Make a Blown Glass Bulb, Make a Light Bulb Base, Make a Vacuum Pump from a Tire Pump, Assemble a Light Bulb, Revert a Vacuum Pump to a Tire Pump

Make a light bulb requires now Glassmaking 2 and Electricity 3 (instead of 6 in the previous version)