These G50 globe light size retrofit replacement bulbs are blue in color. They are faceted LED screw-in replacement bulbs designed for traditional incandescent G50 (E17 socket) sockets. They have a 3 inch diameter. Each has five super bright LEDs encapsulated by a hard-to-break lens (unlike the old-fashioned and very fragile incandescent bulbs). Fits directly into existing traditional sockets without extra transformers. Saves a considerable amount of power on electric use. Each bulb consumes 1.7 watts of power so you can safely connect up to 660 bulbs on one 15 amp circuit. These are great for simple on/off applications. Not recommended for dimming (as in some computer animated displays). Sold in packs of 25 bulbs.