How do you determine the quality of a streetlamp ballast
Look, if the ballast is burnt out, the shell will be black. Electric pencil test, the inlet and outlet end and the outer casing There is no electricity at the end of the line to indicate that the ballast is broken and the fuse is short-circuited There is electricity at the end of the line and there is no electricity at the end of the line The electric charge of the case indicates that the ballast leakage
If there is electricity in the line, the shell is not charged, and the lamp is not bright and can be judged by changing the trigger. If a trigger is changed without a light, the ballast is broken
If online check several simple and practical way: 1, determine without leakage, feel with the hand, certainly does not work, if not hot ballast is bad above 2, a screwdriver top one close to the ballast, if you have any magnetic ballast suction screwdriver to account for the ballast is work.
