Heaters fail all the time, and all brands do.
You are lucky it was the 200 watt instead of the 400, the 400 may have cooked your fish.
If not using a controller, it is always better to get a few undersized ones than 1 high watt version.
You are lucky it was the 200 watt instead of the 400, the 400 may have cooked your fish.
If not using a controller, it is always better to get a few undersized ones than 1 high watt version.