If you have been looking for the middle ground between your basic building sets and the (somewhat expensive) Lego Robotics (Mindstorms) sets, check out the LEGO Power Functions series. Add power and even a remote control to your creations. And the price is right, too!
Power Functions M-Motor
Price: $7.49
Add a spin to your Power Functions models!
Power Functions IR Remote Control
Price: $9.49
Ultimate control over your Power Functions creations!
Power Functions Motor Set
Price: $29.99
Power up your LEGO® Power Functions!
Power Functions Extension Wire
Price: $2.99
Extend the reach of your Power Functions!
Power Functions Extension Wire 20”
Power Functions Control Switch
Price: $5.79
Take control of your LEGO® Power Functions motors!
Power Functions Light
Price: $6.49
Light things up with LEGO® Power Functions!
Telescopic Handler
Price: $89.99
Major realism – major lifting power!
Power Functions Battery Box
Price: $6.99
Add more power to your LEGO Power Functions!
Power Functions IR Receiver
Price: $14.99
Add remote-control functionality to your LEGO models!
Power Functions XL-Motor
Price: $9.99
Powerful rotation for your Power Functions!
Cargo Copter
Price: $19.99
Lift, fly and go!
Off Roader
Price: $119.99
Take your TECHNIC building off-road!