AquaUV has been building quality UV sterilziers and UV bulbs for marine applications for decades. Their units, ballasts and bulbs are proven to last much longer than competitive units and they only build quality products. They are one of the leaders in the UV sterilization industry not just for marine applications but for many other industries as well. They have a very long and proven track record. The Jebao is not built for salt water (it's a pond sterilizer) nor does it use quality bulbs or ballasts. There is much more to a UV sterilizer bulb than just putting out UV light and that is an area that AquaUV excels at as they design their units from the bulb out. They are the standard that others try but fail to measure up to.
On the flip side, there is no engineering behind the Jebao unit let alone support or guidance. They don't make their own bulbs. They use a cheap poor quality bulb. Watt for watt the AquaUV will work better and last longer than the Jebao. Not only that, but if you have pre sales or post sales questions regarding the AquaUV unit, AquaUV is a phone call away and there is always somebody knowledgable and available to answer your questions. That latter can't be said about Jebao as the company provides no support whatsoever for any products they sell.