MR16 solutions with LEDs are intended to replace halogen lamps with a more efficient solution.
Often this is associated with problems in thermal management, both from the LED and the driver.
Since the LED mainly dissipates the heat through conduction rather than irradiation, the
replacement system has to be carefully designed in terms of both shape and material, and in
consideration of the LED derating curve. Also, the driving circuit has to manage increasing
amounts of current, while the space is constrained by the limits of the base connector in an MR16
style LED lamp (GU5.3 standard).
MR16 systems typically operate from 12V AC or 12V DC, using conventional electromagnetic or
electronic transformers, and the efficiency as well as the LED current is strongly affected by the
power source used.
This design can be used for a system employing a single 3W LED in the lens section, and this can
be arranged to suit the luminary designer's requirements.