Features: Energy saving: DC/AC 12V LED bulbs, replacing 20W halogen bulbs, can save up to 93% on electricity Easy to install: standard G4 base, plug and play. Larger than traditional halogen bulbs Application: suitable for landscape lighting, cabinet lights, picture lights, column lights, table lamps, and more Voltage compatibility: works with both 12V DC and 12V AC power sources. Not compatible with dimmer switches Durable: long service life, environmentally friendly, no mercury, no ultraviolet or infrared radiation Package Includes: 10 x LED Bulbs Specifications: Material: ABS Number of AC style LED chips: 12 Number of DC style LED chips: 12 Base Type: G4 Bi-pin Working Voltage: AC/DC 12V Color Temperature: 3000K Luminous Flux: 150-180 lumens Size 1: Approx. 1.46 x 0.47 inches Size 2: Approx. 0.5 x 1.7 inches Note: 1. Please allow 1-2mm measurement deviation due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the actual color of the item may vary slightly from the images shown.