Good buy, but probably not for all

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

They are as advertised and were all received in good condition. They appear to be reliable and functional. They have all the LEDs pointing out the back, so they are directional. They worked adequately for my application which was to replace most of the bulbs inside my travel trailer to reduce the power consumption and increase batter life.

They are not very bright. For my application, adequate, but not as bright as the ones they replaced (of course they use much, much less energy). I would guess they might not be bright enough as a replacement for automobile tail lights...

Worked, appears reliable, most of the light created is directional. Not as bright as I would have liked but adequate for my use. There are more expensive versions that produce more light in more directions.