It looks like there's a bug in reporting needed bulbs for "project" when you clic on a tech.
If you're halfway researching the previous tech, the total amount of bulbs will NOT sum that tech's bulbs to go, but the actual bulbs you already discovered.
So, if next tech in branch is 200 bulbs and you're just 40/100 of the previous one, the total amount calculated is 240 (wrong) while it should be 260.
Forums: Index > Development > Bug in Tech report