A light-emitting device includes a substrate, a first nitride semiconductor stack formed on the substrate, a nitride light-emitting layer formed on the first nitride semiconductor stack, a second nitride semiconductor stack formed on the nitride light-emitting layer, and a first transparent conductive oxide layer formed on the second nitride semiconductor stack. An embodiment of the invention also provides an ejector latch, where sufficient force or leverage can now be provided by the user by grabbing a movable handle portion of the ejector latch in order to disengage the ejector latch from a portion or component of a carrier. The system may also share secure keying information with a new device not already a member of a secure wireless network. The cams are positioned and arranged to toggle back and forth between a first open position for the supply valve and a second open position for the drain valve, a third open position for the from-patient valve and the second open position, and the first open position and a fourth open position for the to-patient valve. The core data detector circuit is operable to perform a data detection process on the series of filtered samples and to provide a most likely path and a next most likely path.