Now if you want to go Amish on us and supply your own power with solar cells and diesel generators, then it truly doesn't matter what kind of bulb you use.
Your oldest and longest running fanbase would like better communication.
The Half-Life 2 series was designed as three separate "Episodes", presumably with the intent of delivering content faster. HL2 Episode 1 was released in June 2006. Episode 2 was released in October 2007 (along with Team Fortress 2 and Portal in The Orange Box). It's been over 4 years since then, and there's still no word on Episode 3."
Research is to see what everybody else has seen, and think what nobody else has thought.