Moonrays 95529 Wedge Base Light Bulbs, Clear, 18-watt, 4-Pack Great replacement bulbs for low voltage landscape lighting and sold in a 4-pack Average lifespan of 500-hours and measure 1.5-inches in overall length (38-millimeters) 18-watt clear bulbs have a 250-lumen rating For best results, make sure to replace your bulbs with the same size and style of bulb that came with your original low voltage lights Comes with a limited 1-year warranty