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I ordered 2 sets of the LED eye covers, by accident, I plan to use both but have only used 1 so far. I found that the first set had a protective covering over both sides of the lenses. While removing the protective cover I found that the temporary adhesive holding the covering on was very messy. The adhesive smeared on the lens a bit, causing a blurry area on one end. It was about the same time that the LED for one lens came out completely. The other lens' LED came out soon after the first. They weren't held in by much at all, if anything. I ended up using a hot glue gun to secure the leds back in the correct location. There's also a reflective metallic strip around the outside edge of the lenses, that's not adhered very well, also. I was able to get these to work with a little extra effort, but it was extra work that the buyer shouldn't have to do.

The product works and can see thru them with power off. Takes a sec to adjust eyes with power on of course. My only gripe is battery cover door was missing in package. Not really worth complaining about or returning though.

The only issue I had with these is one that I saw in other reviews: the LED leads come out of the eye pieces way to easily. One of mine fell out when just moving my project around, the other fell out when trying to mount them into the mask. Hopefully a little glue gun will help get it in place. Also, in the reviewing it asked to rate the adhesion. Not sure why, there was stickiness at all to these, so don't expect to just press into place and go. Otherwise, not bad for cheap price.

These were larger than expected and very flexible. They are very transparent and easy to see through even with the LED on. Simple to install in any mask with a hot glue gun. As per other reviews the wires are very delicate so use care when removing the protective backing (but if the LED does detach from the lens, it's easy to pop back in). I will definitely use this product again, looking forward to seeing more color selections in the round style.

Super cool, BUT, maker needs to improve where wires go into light, fall out. Easy fix to hot glue wires into housing before handling much, once they get customer feedback I hope they will address this issue.

Worked well for what I needed, I didn't need to cut them because of my mounting system, my only complaint is I wish they where brighter but other than that they work great.

The item cur kinda funky, but it worked great for my bionicle eyes.

The product is as expected. Lightweight, perfect for putting into a helmet. The only problem that I had was the led beads that are put into the diffused panels unfortunately detach quite easily from one another. Nothing a little glue epoxy won't fix. Otherwise it's easy to see out of close up, and diffuses the light well. Overall, satisfied with the product.

The media could not be loaded.  I like that it’s small and compact. I don’t need to use the adhesive so I’m not sure how well that works, but you can’t select between colours or strobe timing, it’s on or off. Cycling through every colour and every flash type. Which I guess would be ok if THEY MATCHED. They don’t. One is welllll behind the other. Not just like a little. Inconvenient and annoying. Kinda my only option is to remove one and close off that wire. Too much money for a bummer of a product

Very flexible and had no trouble