Trying to wire a light into the P4 0-10v connection on the back of the Profilux. Purchased a pack of RJ12 6P6C from Amazon but they don’t fit. Went to Lowe’s but their RJ11/12 6P6C is too big also.

Does anyone know where to purchase the right connector fitting? Just really need help as now I’m down to a single blue light and all the fish are hiding.