GY6.35 Bi-Pin Base LED, 2.5 Watts, 9 - 20 Volt operating range. 250 Lumen, Color Temp. 2750ºK, IP67 Rated, 25,000 Hrs. Can be used with CCH5CB (with Bi-Pin Socket) and CCH5LED1 (original non-integrated with Bi-Pin Socket)