AmScope LED-144W-ZK 144 LED Ring Light Illuminator, White

I like this light ring for my amscope Sm-4b. It works very well. The brightest is well bright enough! The variable brightness knob is very useful,and helps to get the best view on your project,depending on how much light you need. One thing people don’t really seem to mention,is that at a longer working distance(like with the 0.5x Barlow lens),the quality of optics is greatly deteriorated. The lights from the ring are angled and designed perfectly for the 4 inch working distance the Sm scopes provide. But when you go to 8 inches,the angled lights shine DIRECTLY onto what you’re looking at,from all directions,and this causes gray distorted colors. When you hold the light ring in your hand,you could see this. Have it aligned with the head of the scope,and move it closer to your object(for me it’s a circuit board I solder on) ,and you see it gets colorful and clear,since the lights shine around what you’re looking at. But when you move it farther away,the angled lights have more time and distance to cross over and shine across each other and directly onto what you’re viewing. This causes the gray and reflective distortion. A gooseneck may be best in this case,or somehow attach the light ring to “hang down” from the scope so that it is 4 inches from the object of view. I only mention the above to help anyone that gets the ring and is confused about optics being grayed. I saw a review on here about that. They probably used a Barlow lens. Perhaps the 0.7x wouldn’t be as bad since it’s a 6.4 inch working distance. Otherwise,this light ring is very useful. For the price,I can’t argue!

A very effective, well made, reasonably priced accessory for stereo-optic microscopes. Stereo scopes are commonly used for viewing opaque objects: rocks; coins; macroscopic dissections; watch innards, etc. Consequently the stage is usually lit from above. I have an AmScope stereo 'scope that is has lights both above and below the stage -- unfortunately, with certain objectives the upper light is actually partially blocked by the objective. The fix for that is either an expensive external light mounted off the one side, or a ringlight. This ringlight uses LEDs, which is a nice complement to the halogen lights that came with my 'scope. It mounts easily above the objectives, and distributes light evenly over the stage. The intensity is adjustable from nearly full-off to full-on, via a small rotary control. If I were going to change one thing about this light, it would be to have it plug into the microscope base itself for power, rather than running a separate cable to yet another wall wart. Can't have everything, I guess. Otherwise, no issues. Once I installed this light, I find I use it almost all the time. Very useful, and recommended.

The light is adjustable and because it sits just under the lens it illuminates the work surface perfectly. The light isn't harsh and doesn't seem to effect the color or clarity overall

Designed for inspection style microscopes Works as advertised with dimmer

edit: added the images for a fix so the scope and light sit square as well as an image for the distance between the light and the amscope mount. Also just noticed that they no longer ship to my area? How odd. I really like this light, it is has a smooth variable adjustment and gets quite bright, however, there are two things that it could stand to have improvement on. The first being the lack of metal inserts for adjustment. This should not be a problem however as once you install it, it should never have to be moved. The second issue is that the power cord, which is a 12 volt wall wart has a plug that is too long to allow you to install the unit square with the scope. I fixed this with the use of a small "extension cable" that has a 90 degree angle one one end and a straight connector on the female end. The plug is a 5.5 O.D. and a 2.1 I.D. pin. I made the extension with a couple connectors that I had on hand as amazon for some reason feels that these connectors "require special handling and cannot be shipped to Alaska" (you get used to just making things yourself up here as a result), but you could easily find such a cable here on amazon when you order this light. After installing the 90 degree short extension, I am able to place the light square with the microscope frame and the entire feel changed as now I have access to BOTH the power switch and the adjustment without having to reach up under the microscope in an awkward fashion. If the plastic does eventually strip out, I might just grab a couple T-nuts from the hardware store and fit them on the inside of the light so when installed they push out on the ring securing it. . Hope this helps someone :)

I just received this item today. I have only spent 15 minutes, or so, using it so far, so this review should be considered an initial impression and not necessarily indicative of the long-term success you may experience. Overall, I am very pleased. The LEDs are very bright (as bright as you are likely to ever require, in my opinion) and give off a very even, wide angled and clean light with no flicker. The brightness control works well and the light level can be adjusted anywhere between off and blinding. As much as anything, I am really happy that the light appears to be about as close as you can hope to natural daylight (I haven't noticed any yellow and very little to no blue in the light it produces). My only concern is that the plastic through which the thumbscrews pass is relatively soft and seems like it could be stripped out if you aren't careful when tightening the screws. For the price, though, this thing seems great. I recommend it.

Much better than the 80 LED ring from AmScope, and much cheaper. Some complained about the ring being made from plastic, and yes it feels cheap, but then it is cheap. The screws that tighten it to your scope go onto the black ring you see in the picture. That ring must fit your scope, or you will have trouble getting this LED light ring to hold one. The screws can't be tightened very much, because you will break the plastic that they are threaded into. That black ring has a groove cut out around the edge, so you only have to tighten the ring so the screws are in the grooves, they don't need to be very tight to hold on. So it might be the people who could not use the ring, or did not try to use the ring that had the most trouble with this light ring. The 80 LEd ring from AMScope put lines in my picture from the camera. The sad thing is that their tech support could not help me get rid of the lines, so the ring was defective, and i needed to return it. AMscope made me pay to return it, it cost me $15 to ship it back. It was heavy because of the metal control box. AMScope has some pretty shady business practices, so beware as you shop. Returning defective products should never cost the customer money to return. At AMScope, you will pay to return any defective products.

Buena

Aro de luz con 144 leds va ajustado bajo la lente en un surco preparado para esto. Tiene una rueda para subir mas o menos la intensidad de la luz. Se conecta por enchufe q trae adaptador para enchufe europeo o el normal nuestro, vamos

Prodotto eccellente, molto luminoso. A questo prezzo 5 stelle! Ci sono illuminatori di altre marche, anche prestigiose, che si fanno pagare 5 volte tanto e valgono meno della metà. Unica pecca arriva con alimentatore con spina inglese (ma viene fornito adattatore europeo). A voler essere precisi, il connettore a barilotto dovrebbe essere angolato altrimenti non riesce a stare sotto alla testa del microscopio e l'alimentatore non è marchiato CE.

Excellent transaction just what I needed and great Quality

Bought to use on a Wild M5 stereomicroscope to save electricity. This microscope has a tapered nose piece but the 64mm diameter ring went on in a suitable place and easy to secure using the the three mounting screws. I couldn't locate it in the orientation I wished to because the on/off switch was fouled by the microscope stand. However, putting it on the right side of the stand it works fine - just a bit more fiddly for a left-hander! Came with a fitting for standard 42mm parallel sided nose piece 'scopes. Good bright adjustable light. A cool light compared with the usual Schott swan-neck light source but that's not a problem for me. I still use the Schott for high power work and the two together work really well for this. Of the three images - first has the spot light effect of the Schott system, the second the AmScope LED and the third both. So far very pleased with it and hope it lasts.

Passt super an unser Amscope sm-4tp Stereomikroskop. Beim Licht dabei ist alles benötigte befestigungszubehör sowie ein steckernetzteil. Das Licht ist schön hell und lässt sich stufenlos mit einem knöpfchen regeln. Außerdem gibt es einen einein Ein/Ausschalter