Product features:
+ Solid ceramic versions (ie no plastic!) With thermal protection at the top
+ Rubber-sheathed connecting wires as flexible wire, 17 cm long, bared at the end about 0.7 mm, without pod (more on that later)
+ Even admitted to 230 volts and 100 watts - is marked on the back of the socket, together with the "CE" mark (see picture).
+ Slots for the lamp pins with wide metal jaws. Lamps can be inserting without pressure and keep still very strong
+ Not only fits on GU4 and GU5.3, but even on G6.35 - so this is a really universal version
Comments on the discussion about Litzenschutzhülsen (just skip if not interesting):
The absence of Litzenschutzhülsen as it is bemägelt in some reviews, is for me personally not a negative criterion is, as the cable length is not necessarily suitable for any desired use and shortened in frequent cases or must be renewed. While it is correct that you can not connect to normal luster terminals strands - and certainly not before tinning (VDE 0100, Part 520), but there are in addition to the core sleeve that I use anyway, still several alternatives: there are terminal strips with a Litzenschutz (sometimes referred to as core protection). They have a small metal tongue between the screw and the metal body and so clamp the wire a large area and safely. I have them from a known electronics supermarket and they tasted there little more than normal luster terminals. Here at Amazon there are terminals from WAGO, eg WAGO 222-412 connecting terminal. The type 222-412 may connect both wires and solid wires between 0.08 to 4.0 mm², packed to 400 volts and 32 amperes. But is also more expensive.
Conclusion:
I am pleasantly surprised by the supplied versions. They are well made, have a good contact and even exceed the specifications in the product description. I particularly like this is that they are for all types of pin base (GU4 gu5.3 and G6.35) equally usable. Now I need only one type for all conceivable applications. The price-performance ratio (4.39 incl. Shipping) I find very good. From my parts get full 5 stars.
Comments on the photos uploaded:
Have uploaded a photo example, the lamps with all three version types shows in Riehen sequence from left to right: GU4 gu5.3 and G6.35. In order to check whether other buyers actually get the same products containing this photo a picture of the packaging. The second picture shows the back of the frame with embossed "CE" mark and the information "230" and "100W". It also recognizes the way in this picture that the cables look the same as in the picture or product description. While in the latter the cables have a braided sheath, my skin had a smooth rubber with the inscription "VDE".
An appeal to the conclusion:
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