See RS catalogue page for Stock No 123-7961.

Initial comparison with the Istorial 4.5W MR16s is that this is a little brighter than the 'warm' lamp and maybe a little less bright than the 'cool' lamp. This is nominally slightly lower lm out and higher W in than the Istoria warm, though historically many manufacturers rounded lm up and W down to allowed legal tolerances, so it is not possible to be sure!

The RS lamp is much warmer, and the Istoria more watery.

This lamp is getting hotter to the touch than the Istorias, which is reasonable given their huge metal heatsinks.

Nominal specs: MR16, GU5.3, 12V, 5W, 2700K warm white, 345lm, A+ efficiency.

Purchase price 2019/03 was ~£3.38 (inc VAT) per lamp, when buying three.