Einhell welding machines einhell 15 440 10 the einhell bt ew 150v electric welder is a compact handy tool which is ideal for the occasional small welding jobs such as joining flat or angled steel pipes and much more thanks to the adjustable welding current the power can be adjusted to suit the particular task the welder has a thermostat with a pilot lamp which helps to protect the bt ew 150 against overheating both the earth terminal and the electrode holder are permanently connected t