Size: 10x29 mm pieces per pack: 2 Other: 5 x 3 SMD chips Volt: 12V Lamp: (T10) Attack: W2.1x9.5d Lumen: 28 lm Led: smd • Smd Technology • Multi-Chip System • Very Life long NOT APPROVED FOR HIGHWAY USE. Use only in competition or show vehicles, for use off-road or on private roads.