Many of us use the shower to excite our senses and snap out of last night's sleep. Now engineers in China have developed a 220V 30A heated shower head that is almost guaranteed to break the sleep cycle; maybe even permanently! Dubbed the "suicide shower" by users in Latin America, the simplistic device has a bare resistive wire directly connected to 220V main power. The ground wire connects to nothing as it uses the water running through the shower head as its connection point. When tested without the ground connected in the second video at the 7:15 marker, up to 125V was measured in the water; thus the reason for the "suicide shower" moniker. The shower head is marked 5400 watts -- basic math for the 220 V at 30 A has us expecting more like 6600. Based on actual measurements, it looks like the high power coil is 9 ohms and you'll see in the video, he does the math not only to look at the power consumed but also how much power it should take to heat up water in an instant water heater arrangement like this. It was interesting to watch him measure the flow rate of the shower with a low tech method. The final answer is that the head really needs to draw much more power to really give you a hot shower.