The light kit uses Gocycle's internal battery to power bright front- and rear-mounted lights. German made, the LED lights are a must for commuting in the dark. Front light is the Busch&Mueller Lyt E offering 25 Lux, taillight is the Secula 6v e-bike model.
Note - this model does not have the correct plugs for the new GX bikes. It has the older G2 type plugs.