... 45w constant current source , it will be more energy efficient 2.Input voltage : 85-264V,easy to use and safty , ... can replace the 900w-1500w HPS , over 80% energy saving . 2. Base on the 1w LED chip.3.Over 50000 hours ... garden, hydroponics or soil based.Notice:1. Indoor use only .2. Turn off the power before installment, don't touch the ... place . 300w LED grow light for growing kinds of plants,flowers