Cree has developed the Cree Product Characterisation Tool (PCT) to help designers identify the best Cree Xlamp LEDs for a lighting system design. The PCT allows users to select from multiple lighting system design parameters to compare up to three LED models simultaneously.
For all valid LED drive currents, the PCT shows all critical LED design parameters, such as luminous flux and efficacy, for selected LED models; performs derating calculations based on junction temperature; calculates LED valuations, such as lumens per dollar; and estimates simple LED design parameters, such as the number of LEDs required and total power consumption.
The PCT uses specifications and characteristics from LED data sheets to accurately compare LED parameters with changes in flux, price and junction temperature. The PCT can compare up to three LED models side-by-side to aid in making critical design choices.
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