Fire House Neon Signs offers a wide selection of neon power supplies. You can purchase neon power supplies for indoor or outdoor use. We also offer specialty transformers such as dimming neon power supplies, and flashing neon power supplies. The neon transformer voltage output needed for a neon sign is dependent on the glass tube size, gas pumped, and glass footage. Our customer service department can assist you with selecting the neon power supply that is best for your neon sign.