A luminaire adapted to being mounted at the top of a post having a design reducing maintenance costs. The load cell housing also defines an bore in a first exterior face. The device employs a conventional SRAM memory device that includes an SOI substrate. The organic light emitting layer of each of the sub-pixels includes a blue light emitting layer and a green light emitting layer. The controller controls the operation of the adjuster based on the time clocked by the timer.