Magnetic ballast 1-Low power consumption; 2-Provides long service life and super quiet; 3CE, CCC, TUV, RoHS, EMC, EEI=B2 Key Specifications:Shell materials: thermoplastic and sealed by epoxy resin, tight waterproofMade up of high grade of steel sheet to avoid noiseCoiled by heat-resistant enamel insulated wire to ensure durable lifetimeLast 2 digits of article number specify with optional ...