The ESM1-EW10 lamp provides ease of replacement for a large range of 2003-2006 GM automotive instrument clusters including Cadillac, Chevrolet, Buick, Oldsmobile, and Hummer. The ESM1-EW10 is a convenient drop-in replacement. The surface mount lamp is already socketed and can be easily soldered into place, fitting nicely on the existing solder pad. Eliminating the need to rewind a wire terminal lamp back into the base saves time and preserves a quality contact on the cluster board. The ESM1-EW10 Lamp replaces both yellow and blue based OEM versions and is rated at 14V .100A and .500 MSCP with a life of 5,000+ hours. 2003-2006 GM instrument bulb; Cadillac, Chevrolet, Buick, Oldsmobile and Hummer.