If linking 2 lights, light source facing forward, #1 at power source: Light #2 must be left of #1? right? reversible? Does power enter only 1 side?

Hi Valued Lowe’s Customer. Yes, this light only has one way linking. If you have any further questions, please feel free to respond or contact us through phone at 1-800-654-8483 between the hours of 7AM- 8PM CST, Monday thru Friday or email us at support@byjasco.com