Green Watt Power, a division of Calex, announces the introduction of the GLCD 50 Watt constant current dimmable LED power supplies. The dimming options for the device include 0-10V, PWM and external potentiometer. All models feature a universal 100-277 VAC input with nominal output current values of 500mA, 700mA, 1.05A, 1.4A, 1.75A, 2.1A and 2.8A. The dimming range is 10 to 100%. All models are RoHS compliant, IP67 rated and backed by a five year warranty. The power factor correction for all models is 0.95 and total harmonic noise is less than 20%. Rise time is 200ms and setup time is 2s. Overshoot and undershoot response is +/-10%. Ripple and noise is 5% of I out. Input to output withstand voltage is 3750 VAC. The MTBF per MIL-HDBK-217F is 200k hours. The operating temperature of the power supply is -35 to 70C ambient. All models are protected by over voltage protection, short circuit protection and over temperature protection/shutdown with auto-recovery.