Review on ⚡️ KEB 220-1 TP Electronic Ballast with EMI Suppression - Keystone Ballasts by Micael Casillas

Device arrived quickly but not in the original packaging. A close inspection revealed that it was spent ballast. I cannot determine whether this is individually returned ballast or used ballast from a batch salvaged from the demolition site. I installed it anyway and it works fine. The question is how long it will last.