T-50 size, Yellow commercial grade, faceted LED screw-in replacement for traditional incandescent T-50 (E26 socket) bulbs. 1-3/4 X 2-1/2 festival bulb. Each has ten super bright LEDs encapsulated by a hard-to-break lens (unlike the old-fashioned and very fragile incandescent bulbs). Each bulb consumes 3.2 watts of power so you can safely connect up to 320 bulbs on one 15 amp circuit. Fits directly into existing traditional sockets without extra transformers. Saves considerable power compared to incandescent bulbs. These are fine for simple on/off applications. Not recommended for dimming (as in some computer animated displays.)