I apologize if this is a naive question. I have read through several threads on UCL LED lighting, and I'm pretty confused by the options.

Here's my question: My electrician has put in wiring for UCL. I think it's one circuit (?), meaning there is a single switch that turns all UCL on and off at the same time. He is recommending LED ribbon lights for UCL. He says they are 3K lumens (if that's the correct term?), says they will be the same color as regular incandescent bulbs. That part is fine with me.

I looked on Amazon and found this for $13.88: http://www.amazon.com/LEDwholesalers-Flexible-LED-Ribbon-2026ww-31k/dp/B002QQ48TK/ref=sr_1_sc_2?ie=UTF8&qid=1373710663&sr=8-2-spell&keywords=undercainet+LED+strip+lights

and this for $13.88: http://www.amazon.com/gp/product/B005GL5UG2/ref=cm_cr_asin_lnk

and this for $160:
http://www.lightingbuff.com/precise-led-pl-lr1027-led-led-under-cabinet.html?utm_source=AmazonAds&utm_medium=datafeed&utm_term=600%20LED%2048%20Watt%20Tape%20Light%20-%20Warm%20White&utm_content=Precise%20LED&gdftrk=gdfV22866_a_7c666_a_7c2718_a_7cPL_d_LR1027

My electrician said that I would have to purchase the entire spool from him for $200, then he would cut the lights to fit under my cabinets, and they would be direct wired (he's already installed the wires). I don't know if there's a transformer involved or not, don't know if these are low voltage or not??

I told him I'd seen a spool of lights on Amazon for $13.88 that got great reviews, and he said his ribbon lights are COMPLETELY DIFFERENT, hence the cost difference. He said his lights are only available "to the trade" and that they can't be installed DIY. (I am not DIYer, so that's OK with me).

Is my electrician just trying to make a nice profit on these lights, selling me a $14 product for $200??? Or is his spool similar to the $160 product above? I have no way of determining whether his "to the trade" spool is any better or even different from the $13.88 spools of lights on Amazon.

He lead me to believe that "his" lights would be direct wired, and not plug into an outlet, and that this makes them better than any "consumer" product. He also implied his lights are NOT low voltage, but I find this hard to believe since all the LED light tapes seem to be low voltage -- true??

I'm really confused by all this. I was leaning toward Juno LED boxes (don't know what they are called), simply because they look familiar (similar to the under cab lights I had in my old kitchen.)

If you can help explain this in simple language, please do. I have no soldering skills, no wiring skills, no experience with electricity, other than turning lights on or off! Please help me if you can. TIA.