SYLVANIA 64490 - 400 Watt - BT37 - METALARC - Metal Halide - Unprotected Arc Tube - 4000K - ANSI M59/S - Universal Burn - M400/U
Brand: SYLVANIA-Wattage: 400 Watt-ANSI Code: M59/S-Bulb Shape: BT37-Base Type: Mogul (E39)-Color Temperature: 4000 Kelvin-CRI: 65-Protected: No-Life Hours: 20,