The fischertechnik LED Set is just the right solution for more light! The construction sets can now be upgraded even further with more luster and additional light effects. The set contains two Rainbow LEDs that flash in different colors and frequencies, together with two white LEDs and a battery holder.

Includes:

• 2x Rainbow LEDs
  
• 2x white LEDs
  
• battery holder for‚ 9V block battery (battery not included)