Energy Saving: G4 LED bulbs only consume 4W of electricity, which is equivalent to traditional 20W g4 halogen bulbs with high energy consumption, saving you more than 90 of electricity bills. High quality: High light transmittance PC lampshade, strong and pressure resistant, improve energy efficiency. Lifespan up to 30000H, strong heat dissipation, durable lamp beads, reducing the frequency of lamp replacement. Easy Installation: G4 standard base, easy and convenient installation. The standard size is 41.3mm*13.2mm, slightly larger than traditional halogen bulbs, Please check the bulb size before purchasing, check the voltage of the power supply (AC/DC 12V) . G4 Bulb Not Dimmable: LED bulbs are not dimmable, do not use these bulbs with dimmer. Wide Application: Non-dimmable G4 LED bulbs provide 360 beam angle, natural and comfortable light, easy to install on G4 base fixtures, please do not use with dimmers. Suitable for wall lights, table lamps, chandeliers, crystal lamps, indoor lighting, landscape lighting, etc.