The Bachmann 16V DC Multi-Accessory Power Supply allows you to power up to six powered accessories up to a one-amp load (instruction included with most accessories tell how much current they use in milliamps). Connect as many as three accessories such as building lights to each side. This power supply is ideal for scale accessories in any scale.WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov