gu10 led bulb's are getting to be a thing of the past, as were MR16's. Integrated LED is the future.
A GU10 is the connection, and a MR16 is the reflector so a bulb could be both a GU10 and MR16, yes a MR16 is a thing of the past, as the LED replacement does not have in the main a multi-faceted reflector which is what the MR in MR16 refers to, however the GU10 bulb comes with loads of options which with the interrogated lamp are expensive, typical £25 where a GU10 is £7.50 and with the interrogated getting a reasonable match is so much harder.
I really can't see much difference in bulb holders, what ever make they are, the bulbs however yes massive differences between them, however the electrician does not in the main get called back to change a bulb, so he has no real way of knowing which are good and which are bad, and the home owner does not have enough to compare them.
I have now I think around 6 apps to control bulbs, and three hubs, and there are so many options which are not universal or even advertised on the packages. One with fade in and out, another has dusk till dawn, and because it is often the app rather than the bulb with controls the feature as said nothing marked on the bulbs.
My son has reported a load of failures, but I have not had so many, but not a clue if due to my CU's having SPD fitted and his not, or some one using a welding set near where he lives, we really have no clue.
Looking at
Screwfix prices to compare, non dimming non smart GU10 £4 and a Smart version £7.50 only 6 months ago a smart bulb was £9.50 and a year ago £12 the prices are dropping. Seems about the only items where the price is dropping. Technology is moving so fast so to keep up you want a lamp which is easy to upgrade, so the interrogated lamp is a thing of the past, as to upgrade whole lamp needs changing, I have two, one bottom of stairs, works great but when it fails I will need to buy a whole new fitting, can't go into stock of bulbs and fit a new one, the other is an outside lamp, fact the LED is in the top of the light and shines down does mean a better spread, and at £4 rather than £2 for other carriage lamps it was far cheaper as not spending £9.50 on a bulb, but did need to pay £10 for a smart socket adaptor so it will turn on at 6:30 am and off at dawn, So all in all cost more.
But with GU10 bulbs in craft room, both bedrooms, kitchen, living room and landing light I keep spares, and even if I didn't could rob Peter to pay Paul to keep essential lights running. (Non are really down lights all in a pod of some sort.) But with integrated lamps when one fails it needs replacing fast, so one ends up with non matching lamps.
