Purchasing Instructions: Standard size is 10mm x 35mm. G4 LED bulbs are slightly larger than normal G4 halogen bulbs. Please check the dimensions of this product carefully before purchase to ensure it fits your device. Power Saving: Applies to AC 12V and DC power supply devices. 2W equivalent G4 halogen lamps Energy saving LED bulbs can save up to 90% on running costs High quality materials: Warm white G4 LED bulbs, 3000K / 220 LM , 360 beam angle, silicone coating, pressure, heat and shock resistant. Ultra long life: G4 LED bulbs last longer than conventional halogen capsules. Wide Application: Ideal for chandeliers, G4 lamp fixtures, G4 wall sconces and most G4 lamps with 12V DC - lights for landscape lighting, yard, garden, patios lawn lamps, puck lamps, cabinet lighting, etc.