The LED lamps replace my 4x40W halogen spotlights on a ceiling. With surprise, I found out that the LED bulbs are incredibly bright and have excellent illumination (radiation angle). The color temperature corresponds to that of really bright halogen spotlights. The LE 5W (the gray) I had a limited viewing angle notice, so I'm over the LE 6W so happy. The difference makes 1W but really veeery much from. The 6W correspond rather 60W halogen light at exactly pleasant. As with all my Lightning spots Ever Again no flicker, super!