LINOVISION Industrial Gigabit POE+ Splitter, Hot Switchable DC12V or DC24V Output, Wide Voltage Input, IEEE802.3af/at POE to DC Power Supply for Security Cameras, Wireless AP, Access Control Systems

There are cheaper options, but I've got one of these running in a hay loft and another in a basement. Both work wonderfully and haven't had a blip at all. The loft gets quite hot in the summer, so that's a testament to the quality and ruggedness.

屋外でBOXに入れ、MAX　2Aの負荷で使ったが、8ヶ月で壊れました。しかも涼しい時期。残念な商品です。スチールケースで作りだけはしっかりしてます。

The application I have (outdoor audio system) needs as much power as possible for peak power situations. This PoE splitter from LINOVISION is advertised as supporting a max of 25W. Unfortunately, it shuts down above 23W.I always thoroughly test PoE devices prior to putting them into service, as I've had devices fail in the past and take out other devices in the system. I have two different styles of PoE 802.3bt injectors (one that is a midspan and one that is a switch). Both have been tested extensively and appear to properly comply with the 802.3bt standard, so I use them as a PSE (power sourcing equipment) for PoE device testing.I have a power load tester that has a digitally-controllable load. While it isn't a "calibrated" device, I have verified using other devices (e.g., Fluke multimeters) that it accurately measures DC current and voltage, and therefore properly calculates power draw. Using this tester, I found that this LINOVISION PoE splitter shuts down once you cross over 23W (0.96A at 24VDC). Most of the other brands of splitters that I have tested have had 5-10% of overhead above their advertised rated output (e.g., a 25W output might work up to 26-27W before cutting out. Not so with the LINOVISION, at least not with the unit I received. I'm going to return it for a replacement to see if another one performs to spec.Otherwise, the product seems to work as advertised (12V/24V hot switch, Gigabit connectivity, proper negotiation on 802.3af/bt).

Installed in an outside, sealed, water-proof electrical box to power a 12V security camera. Device worked perfectly for about six months, then abruptly failed. It has a nice, rugged metal case, but "industrial" grade it is not. I would have expected much more durability for the premium price as compared to cheaper devices.

Using these to power some LED lights in an interactive exhibit using only POE. Works very well.