Connecting two 12 V electricity consumers demands higher concentration and care. The total power consumption of both consumers must not be higher than the maximum output power of the power supply. Even if the power supply is strong enough, the cable sets a limit at a total power consumption of ca. 60 W.
The technical specifications of the power supply must be met under all circumstances, even if two cunsumers are connected - e.g., they must not consume more power than specified.
Liability for damages caused by improper use of the Y-cable is excluded.