20 x 12.5mm Mini Secondary optics for only 2.79!! this is a steel for someone needing optics, they are nice and small for replacement parts in led torches or even build your own... mine only came with 16 12.5mm Mini Optics but is still a very good price, they might even got lost on they way as this packge travveled al long way to me I dont realy have ... Read more
Good quality lens. I use it to make microscope with my students. We use two disk to make one microscope. The magnification is around 40X. The students love the project. The price is very good and the student can bring the project at home. The shipping takes 4 to 6 weeks. It is a very good product. It is packaged in plastic bag. If you are looking for ... Read more
Used these for a custom 1W led light, i needed a wide beam with a small profile. the lens works fine and is made of acrylic, this was good for me because i was able to shave the sides down to make it fit. hard to do with glass. all were in good condition with little nicks here and there. small lens's with wide focus, not suitable for a tight focus but ... Read more
20 lens for less than 3 dollars, you can't find in some where else. It is small, so it can fit some of my small flashlight. It really helps concentrate the light beam. It is plastic, so you can easily glue it to any surface. It cannot fit to bigger flashlights. To them, it may even weaken the lightness, and cause a dark circle inside of the beam. Because ... Read more
High quality plastic lenses for your all needs. I use it in optoelectronic projects to improve focus and range of optical sensors. May also be used for other purposes. Somewhat pricy. One side is convex the other side is flat. Strongly recommended for all Do it Yourselvers. the price is high for a bunch of plastic but it may be worth the price depending ... Read more
Nice product. These plastic lenses are of equal quality between each other..All arrived in good condition, not scratched etc. Works great. Could be little bit cheaper (it's just a very small peace of plastic).
I thought it could help me to make my LUXEON 5.1W RGB LED shine in a smaller angle (not 120 degrees as it does), but it doesn't work very much ... Read more
Clear, well made, very inexpensive. None for the product. But the online form is making me add characters to get to the 500 character limit. The form gives me this error code:
"Please make informative reviews, reviews under 500 characters (all fields combined) will not be accepted. All fields aded together, your review does not contain more than ... Read more
Well here is a little plastic lens that focuses a 120 degree high bright LED into a nice tight spot with the die from the led projected as an image in the hot spot. They come in a pack of 20, all of mine are very consistent None really, used with out a reflector you get a few artifacts (of oourse) 12.43 mm radius. Flat back. If you place the lens about ... Read more
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