The SolarSpeeder 2 Kit is a very quick Solaroller that can cover 3 meters (10 feet) in under 40 seconds in direct sunlight.
This new version of the Photopopper is still a solar-powered, light-seeking, obstacle-avoiding robot, but now with update electronics & gold trim that make it twice as fast!
These aren't kits, as much as they are an inexpensive bag of components so you can build yourself a Symet.
For true DIY, hack the included cassette mechanism into a solar-powered device using the high performance Miller Solarengine which converts light into impressive bursts of energy! Rapid fire, SCC2433-MSE version.
This epoxy-encapsulated monocrystalline solar cell generates a nominal 4.5V / 18mA (sunlight) from a 24x33mm package. And has an integrated solarengine circuit board!
This big brother of the SCC3733 is also an epoxy-encapsulated monocrystalline solar cell, but this one offers 8 volts and 44mA in a 37 x 66mm package!
If you want to build the SolarRoller found in Make Volume 06 SolarEngine Project 06, this is what you need!
If you want to build the Trimet found in Make Volume 06 SolarEngine Project 06, this is what you need!