zafar 3 Takes a long time to build up temperature and only suitable for light soldering.Will not work with large cables(1-3AWG) due to slow heat up and very poor thermal control.Need to heat it up +50-+70c (360-390c) in order to solder 8-12awg wires normally.Would not recommend for SMD due to high thermal overshoot. Might damage components accidentally. For de-soldering work and light soldering its ok.