Embodiments of the present invention generally describe systems, devices, and methods for directly measuring pulse profiles during pulse delivery. Typically, all ports transmit data. In some examples, the housing is configured such that, when a flow of fluid enters the housing, the flow of fluid divides into at least a major stream passing adjacent the light source and the detector and a minor stream passing adjacent the temperature sensor. The lamp shade has an open end connected to an outer periphery of the lamp holder; and the LED module, the thermal module, and the heat transfer member are received in a space defined in the lamp shade. The hardware device handles certain functions in hardware, thereby permitting the microprocessor at the lighting device to incur substantially less processing load.