Product Name: WaterProof- Electronic Ballast for Aquariums Specifications: 1*14W,1*18W,1*21W,1*28W,1*30W,1*35W,1*36W,1*39W,1*54W,1*58W, 1*80W 2*14W, 2*18W, 2*21W, 2*28W, 2*30W, 2*35W, 2*36W, 2*39W, 2*54W, 2*58W We can manufacture different sizes and specifications of electronic ballasts according to customers' request.We also can provide OEM service