G4 LED BULB MEASUREMENT G4 LED bulbs compatible with AC/DC 12V. 5W/Size: 13mm*41mm, 360° beam angle. Warm white 3000K/Daylight white 6000K emits comfortable and pleasant light. G4 LED bulbs adopt COB LED chip, which is shatter-proof and can provide you with comprehensive lighting without dead spots and shadows. ECO-FRIENDLY AND ENERGY SAVING The lifespan of G4 AC/DC 12V LED bulb is over 50,000 hours. Save effort and maintenance costs by changing bulbs frequently. 85% of electricity bill for lighting. EXCELLENT PERFORMANCE This G4 silicone bi-pin light bulb, carefully selected high quality chips, dimmable, flicker-free. Perfectly fits all standard G4 sockets. Ceramic base, excellent heat dissipation to cool the bulbs down quickly, so the bulbs have a long lifespan. APPLICATION Easy installation: Standard G4 base, can be easily installed in place of ordinary halogen bulbs. Luminaires, recessed lights, etc. Attention: Humid environments such as driveways, patios or sailboats will shorten