【Energy-saving】The G4 led bulb 4w is 400 lumens, bright enough to replace 20w-35w G4 halogen bulb, save 90 percent on electricity bill of lighting. This 12v LED bulbs need LED compatible transformer, not 120V input directly. 【6000K Bright White】Instant on to full brightness, high color rendering index 85 Ra, more vivid. 6000K daylight white with 360 degree beam angle, creat a clean, pleasant and bright atmosphere. No strobe and Eco-Friendly. 【Not-dimmable】Can't work with any dimmer ✔You may need to leave 1 or 2 halogen bulbs in fixture. Otherwise there's not enough load for your transformer/power supply and the led bulbs would flicker and buzz. 【Easy Installation】Standard G4 bi-pin base, direct plug-and-play under AC/DC12V low voltage, perfect for chandeliers, ceiling light, track Lighting, outdoor landscape garden yard patio path driveway step deck walkway lighting. 【Long lifespan】Excellent heat dissipation for the ceramic body, longer lifespan (30000h) and safer to use, saving your hassle and cost on maintenance. Please contact us if you have any questions.
