With Toxic on this as both mesel' and her indoors prefer halogen to those sickly feeble light imposters!
Note the jewellers displays always halogen, leds do not make her jewels sparkle you see?
I could write a long and ultimately boarding post about LED light (I'm an engineer for a lighting company specialising in high end LED light) and the problem is misinformation, as well as the market being flooded with poor quality LED lamps.
There are now LED's which are equal or superior to halogen lamps in every way, but take a deep breath when you buy them, they aren't cheap (expect £25 to £30 each for a premium lamp such as a Soraa, marginally less for something like a Civilight).
For the domestic user looking for a lamp which will be close to halogen, look for a colour temperature of 2700k (kelvin) - often referred to as very warm white, and occasionally as warm white (which is inaccurate as warm white is 3000k) and a colour rendering of 80 or higher (this is indicated by a number called CRI or RA) 'premium' LED lamps can be CRI95 - 97, where as a halogen is typically 95 - 98, and noon daylight on a summer day is theoretically CRI100 (although it's not really possible)
The light output is stated in lumens, watts simply refer to the power consumption. I've just completed a phase of halogen to LED conversions for a jeweller, as he was tired of the halogen lamps in his spot lights causing heat related damage, and the new LED's are actually superior. The old adage is true, you get what you pay for.
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