... new generation 4 8bands Switches led grow lights for Vege. Bloom . Flowers :LED MAX Power: 192/ *3W Power Factor(PF):>0 ... choice: 14W, 45W, 50W, 90W, 120W, 300W, 600W.2) Built-in CE approved power supply, no need ballast, just plug directlyintoAC85V ... ~265V.3) Built-in cooling system ---- heat exhaust fans, solve the heat dissipation excellently ...