Sylvania 1BT37 Light Bulb

Sylvania 1BT37 Light Bulb is a BT37‑shaped high‑intensity discharge lamp from Sylvania Osram, built for high‑output fixtures in industrial, commercial, and outdoor lighting. The BT37 form factor is commonly associated with 1000‑watt metal halide lamps and is typically used with a mogul base to fit large luminaires, delivering bright neutral white illumination when operated on the appropriate ballast. In verified Sylvania lineups, BT37/M1000 variants provide around 4000 K color appearance with high lumen output, suitable for warehouses, gymnasiums, arenas, and outdoor floodlighting where color rendering and long life are important. When replacing an HID lamp, confirm that the BT37 shape, wattage class, base compatibility, and ballast type match your luminaire’s requirements to ensure reliable ignition, consistent color, and optimal efficiency. Always follow safety guidance for HID lamps, including proper handling, cooling, and disposal; install only in fixtures labeled for the lamp’s wattage and type.