T8 LED tube direction ?

[CJseven]

I just installed a few 4 ft led ready fixtures and led bypass single ended bulbs. The bulbs have L and N on the power end of the bulb which I assumed corresponded with the pin near each letter, so upon installing the bulbs I made sure the pins were inserted in the tombstones to match the line and neutral wires. When the bulbs are on I have a dark line down the length of each bulb from what appears to be the led strip like the bulbs are installed upside down. Is this correct or should ( or can I ) turn the bulbs over?
When I was installing the bulbs you could see some type of white looking stripe down the length of the bulb on the inside.
Here are the bulbs I have

https://www.superbrightleds.com/mor...e-b-32w-equivalent-5000k4000k3000k/4359/9782/

 

[RayBob58]

I had the same issue with mine. The bulb is in upside down. Just flip it. Should be fine.

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[CJseven]

Ok thanks, that what I was wondering, but wasn’t sure about the polarity.

 

[Phantomd]

Polarity is almost never a concern on LED tubes. A diode bridge is required anyways to convert to DC in the driver board inside the tube, that makes polarity irrelevant.