I first replaced a miniature incandescent bulb that was included in a small clip-on light that I use for reading in bed; The lightbulb was *blind* hot, and even with it turned down, it was almost unbearable in the summer. LED lamp solved this problem perfectly. The original LED (same type and brand) burned out after about four years and these new ones are a replacement/replacement part for it. I invariably read 2-4 hours every night, so I find it pretty economical.