G4 LED BULB MEASUREMENT ----- G4 LED Bulbs, Compatible with AC/DC 12V. 5W/Size: 13mm*41mm, 360° beam angle. 3000k warm white/6000k daylight white emits comfortable and cozy light. G4 LED bulbs adopt COB packaged LED chip, which has shatterproof effect and can provide you with all-round lighting without blind spots and shadows. ECO-FRIENDLY AND ENERGY SAVING-----The lifespan of G4 AC/DC 12V LED bulb is more than 50000 hours, save effort and maintenance cost on changing bulbs frequently. 85% on the electricity bill of lighting. EXCELLENT PERFORMANCE-----This G4 silicone bi-pin bulb, carefully selected high-quality chips, dimmable, no flicker. fits perfectly into all standard G4 sockets. ceramic base, excellent heat dissipation to help cool the bulbs quickly so that the bulbs have a long lifespan. APPLICATION ----- Easy Installation: Standard G4 base, can be easily installed instead of ordinary halogen bulbs. lights, recessed light, etc. Attention: humid environment, such as driveway,