When installation, it is neccessary to remove the existing ballast; just need to connect the 220VAC or 110VAC directly, otherwise, the high voltage will burn the light. and You do not need to worry its lighting direction, cause our engineer have thought about it, 360 degree removable; As it is designed for replacment of sodium light, a housing is neccessary for provent water and dust.
One customer installed it at their beautiful house, and I would like to share with you all!

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