A proper CND Lamp makes the world of a difference and this has been mentioned in many posts.
This lamp is the absolute worst!
PRO 36W EU 220V Nail ART UV Lamp Light Dryer 4 X 9W Salon GEL Curing Tube | eBay
Don't buy this one either...
Salon Edge GEL Curing Nail Polish UV Lamp 36W Acrylic Timer Light Manicure Dryer | eBay
A colleague thought she would buy a cheapie and for some reason her clients' Shellac Manicure *looked* like it was cured but did not last a week before chipping and peeling off. She just could not figure out why. The first lamp, would not completely cure with the 2 minute timer and when she wiped off the tacky layer it spread the product over the fingertips... I watched her. Then she proceeded to apply another top coat and cure that for twice as long. At this point, it did in fact look like it cured but I'm sure this customer would not be happy with her mani in a few days. She now has a CND lamp and has no complaints from customers. She was new and trying to save money on startup.
I actually have the second lamp pictured. I only used it on myself as I am mobile and keep one in the house for my own mani's so that I'm not lugging everything in when it's my turn. My clients' always get the best.
It was okay. No sensitively, serious lifting and my mani would last the two weeks but I am very easy on my hands and protect with gloves and finger cots. The big difference was when I went back to my CND lamp on myself. I can go three weeks without any lifting! My shellac stays put, no lifting whatsoever and stays on until I take it off NO MATTER WHAT. The cheap lamps are in the closet and will stay there! I got a deal for 2 of these because I thought I might want to put one on each side of my desk and I'm glad I tried it on myself for a while first.
PLEASE PLEASE PLEASE buy a CND Lamp. You will think the Shellac is cured but really it is not. Search the threads and don't just take my word for it.
Oh, and the Nourishing Remover... BIG difference.