HERO-LED MR16-DIM-24T-WW Dimmable MR16 GU5.3 12V LED Halogen Replacement Bulb, 120 Degree Wide Beam Floodlight, 4.8W, 50W Equivalent, Warm White 3000K, 5-Pack 5 Pcs MR16 GU5.3 Low Voltage 12V 4.8W Bi-Pin Base LED Halogen Replacement Bulbs 4.8W Consumption 50W Equivalent 12V MR16 GU5.3 Base LED Spot Flood Replacement Light Bulbs For Use in Spot/Flood Reflector Lamps, Spotlights, Pathway Lights, Landscape Lighting, Pendant Lights, Recessed Lighting, Accent Lights, Novelty Lamps, Table/Desk Lamps, Cabinet Lights, Retail Lighting, Display and Track Lighting, Projector/Stage/Studio Light Bulbs For Use in closet, outdoor, security lights, home, Microwave, Oven, Hood, office, under counter unit, ceiling lamp, stores, Torchiere Lamp, under counter, floor, restaurants, schools, shops, household fixtures, Motion sensor lighting, ceiling fan bulb, outdoor, security Dimmable, Warm White 3000K. Usage Instructions: The product require 12v iron core or magnetic low voltage transformers. They don't work with electronic transformer, which will cause flickering, weak or even burnt. Please connect the 120V MLV Dimmer (e.g. Lutron Magnetic Low Voltage Dimmer) to (120V to 12V) magnetic transformer, then connect the 12V LED bulb. Please turn off the power before wiring. Please don't use electronic transformers. Please note that the dimming range is 10% to 100%.