LED GROW LIGHTING 300W(led green house lighting,led hydroponics light ) 1. USE HIGH EFFICIENT 1W LED AS THE LIGHT SOURCE. 2. 120 DEGREE BEAM ANGLE. 3. BUILT-IN POWER SUPPLY, NO NEED BALLAST AND REFLECTOR. 4. THERMOSTATICALLY CONTROLLED FAN TO KEEP THE LIGHT COOL. 5. LIFE MORE THAN 50000H.