Need a bright, reliable light for a warehouse, gym, or parking lot? This Sylvania 400W metal halide lamp is a workhorse. It's a pulse start model with a BT37 shape and a 3600K color temperature – so you get a crisp, cool white light that's great for large spaces. The Mogul base (E39) is standard for commercial fixtures, and the pulse start tech helps with quicker ignition and longer lamp life. Sylvania's known for good color consistency and solid lumen maintenance, meaning the light stays bright over time. Just a heads-up: this is an unprotected arc tube type and it's meant for base-up operation in the right fixtures. Also, it usually comes in a case of 6, so it's a bit of a bulk buy – perfect for facilities or replacing multiple lamps at once. If you're maintaining industrial or outdoor lighting, this is a dependable choice.
