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Yes its the sodium light (hight pressure sodium). I have a friend that grows with it and haves troumendus results with this light. You just need some ventilation for the heat. You can use computer fans, its the smallest and most effecient ones

See ya hope this will help
cannabecea Reviewed by cannabecea on . WHAT LIGHTS DO I NEED FOR MY HYDRO PONICS SYSTEM HEY DUDES,I'M NEW TO THIS SITE SO HI EVERYONE.I HAVE A QUESTION FOR ANYONE WHO CAN ANSWER,I AM JUST ABOUT TO PURCHASE A HYDRO SYSTEM,WHAT LIGHT DO I NEED,IS METAL HALIDE RIGHT(HID),IS THIS THE ONLY LIGHT I NEED,WILL IT BE TO HOT IN A SMALL WALK IN WARDROBE AND CAN IT BE SEEN BY HELICOPTEORS ON THEIR THERMAL CAMERAS :D Rating: 5