What lighting technology is used in the TopNotch Luxe MR16 LED Bulb (30W Halogen Replacement) with 600 lumen? (Luxe MR16 LED Bulb 7 Watt, 3000k Dimmable-CRI (90+)-Beams 38° (50000k hrs) Weatherproof, Gu5.3, Bi-pin, 490 Lumens)