Input Frequency
47-63Hz
Line Regulation
±0.005% maximum over full range
Load Regulation
±0.015% from zero to full load
Output ripple
<1mV (DC to 100kHz)

Sciencetech 500-110-QTH is an external 100W fixed power supply for QTH lamps. Being a linear power supply as oppose to a switching power supply, it produces a highly stabilized 12VDC noise free output. The unit accepts both 110-120VAC and 220-240VAC inputs.