These C9 size retrofit replacement bulbs are green in color. They are faceted LED screw-in replacement bulbs designed for traditional incandescent C9 (E17 socket) sockets. They have a 2-1/4" cone. Each has five super bright LEDs encapsulated by a hard-to-break lens (unlike the old-fashioned and very fragile incandescent bulbs). Each bulb consumes 1.7 watts of power so you can safely connect up to 660 bulbs on one 15 amp circuit. Fits directly into existing traditional sockets without extra transformers. Saves up to 90% on electric use. These are great for simple on/off applications. Not recommended for dimming (as in some computer animated displays.) Sold in packs of 25 bulbs.