... . Built-in constant current device, input voltage: 220V. Low weight, safe, long life, high load efficiency, and working stability. 4. Low consumption ... use: 1. Load the product into the lamp bracket, and directly input AC power. It doesn't need magnetic ballasts, starter, or ... . 3. Product built-in precision electronic components, do not drop and hit it. 4. Products can start normally on this condition ...