59mm*20mm 15~120-Degree 99% Transmittance Glass Optic

Pros: -Nice clear glass with even surface. It's no camera lens, but seems ok for lighting fixtures and such.

Cons: Both of mine arrived full of small scratches :-(. Probably from poor storage, certainly not from shipping. Arrived nicely packed. They are visible once you put light through it.

Other: It's cheap enough for ordering 1 to see if it fits your project...

Pros: Quality build, Thick glass, very transparent, a must buy for SKU 39999 or any similar models.

Cons: Was chipped a little on the edge when i got it, Doesn't matter because its not even visible when mounted, it probably happened in shipping or something.

Other: You will probably need this if you are making a light fixture with SKU 39999

Pros: I used this item with sku 44176 after I used it for my bicycle. Extremely great and bright if you cycle at night. With this len on, you will see the light more focus and strong even thought without it within at least 50m or 100m.
Highly recommended if you use this with sku 44176

Cons: There is no cons for this product, easy to use and fit nicely on sku 44176

Other: Great buy but will be better if the price is lower.

Pros: This Lens is very Clear. It focuses LED lights well. The build quality is high. The Lens has a nice weight to it. It came in lens paper so the lens would not scratch.

Cons: I could not rind any cons with this product.

Other: Buy this product if you need an LED light Focused and not spreading all over the place.

Pros: - Good quality for the money / Cheap for the quality; - Almost no disturbance in light beam was observed; - Transmittance is good, no visible reduction on the light output;

Cons: Didn't find any till now.

Other: If you need concentrated light beam, this is your right choice for 58-59mm reflectors (SKU: 39963).

Pros: 59mm*20mm 15~120-Degree 99% Transmittance Glass Optic

Cons: Shipping is good , quality is very good I am satisfy. Packing is very good to avoid destroyed glasses surface - light excellently

Other: I suppose for other customers, because it has a good quality.Packing is very good to avoid destroyed glasses surface - light excellently