philips q20/g4/cl/12v,led, 20 watt, t3 jc type,12 volt, clear, g4 bi-pin base,halogen light bulb,pack of 10 philips set of 10, jc type g4 halogen bulb 12v 20w. base: g4 bi-pin base (4 millimeters between pins). long life: approx. 2,000 hours bulb life. versatile usage: applicable home, office, restaurants and stores. high brightness & energy efficient light bulb.