AmScope LED-144-YK 144-LED Microscope Ring Light with Adapter

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.

You can't beat this for the price..! Adapter ring. incorrect to thread into my microscope, so I attached ring to scope with Gorilla Super Glue. Rock solid in seconds...! ( I mention this because not all plastics work with all adhesives, but this held securely for months now with recommended product....order a tube in case you have the same situation with your Bausch & Lomb stereo microscope.)

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’m usually against buying cheap versions of equipment but in this cast I was proved wrong. It’s surprisingly good quality and considering the price, I’m very happy with it. I’ve used expensive professional ring lights ($200+) for work in the jewelry industry and so far this one is right up there with them at 10% the price. The brightness control knob feels surprisingly smooth and the power adapter fits snug in the jack so I’m not worried about it accidentally pulling out. The case is plastic but it’s not bulky like some of the other models I’ve used, especially considering it houses all of the controls. It’s a light.. it works well, it’s cheap, and doesn’t feel like junk.. don’t waste your money on the expensive versions that are made pretty much the same

Easy to install and quite bright when set to the high intensity.

Designed for inspection style microscopes Works as advertised with dimmer

The scope I bought didn’t include a light, decided to go with this one after getting frustrated trying to figure out which one fit and what the differences were. It’s good enough. I don’t find it to be poor quality and I don’t see how you’ll strip the screws on it as others have complained about, maybe they’ve updated the design. Anyway it’s plenty good enough for my needs. Only complaint I’ve got is it should have been included with the $600 scope to begin with, they can’t have more $10 in this thing. I get they are in business to make money and are trying to hide the true bottom line price of the scopes, but it just leaves a less than perfect impression of the company. At least I knew up front I’d need this so both arrived at the same time, if I didn’t and had to go and immediately order something for my new scope to actually use it I’d be a little mad about it.