Amazon offers its Prime members the LightUp Edison Kit
, model no. LU-001, for
with free shipping
. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it costs an extra $6.29.) That's the lowest total price we could find by $9. It includes four wire blocks, red LED, buzzer, momentary switch, and light sensor.
: The price has dropped to $22.22