BLUEFIRE 5W GU10 LED Bulbs, Natural Daylight LED/ 5000K, 420 Lumens, 36&deg; Beam Angle, Non-Dimmable, 40W Replacement- 6 PCS Value Pack Saves 87%+ in energy costs instantly compared to 40-Watt halogen bulbs It pays for itself in less than one year of use (see below Return on Investment Calculation*) Guarantee flicker-free light and no buzzing noise Instant ON; no warm-up time. Mercury-free; environmental-friendly! Suitable for architectural, accent, and recessed lighting in residential, retail, museum, gallery, hospital, restaurant, and hospitality applications