Sylvania 64450 MS400/BU-ONLY – 400W | CRI 65 | ANSI M59/S | Base-Up ±15° | E39 Mogul Screw

The Sylvania 64450 MS400/BU-ONLY is a 400W Metal Halide HID — Metalarc lamp, CRI 65, ANSI M59/S, E39 Mogul Screw, 20,000 hours rated life, Base-Up ±15° burn position. Enclosed or Open Fixtures (with restrictions). Requires a compatible HID ballast. Mercury content — dispose per local regulations. UPC: 46135644504. Item: 64450-MS400-BU-ONLY.

Quick Specs

• Brand: Sylvania
• Series: Metalarc
• Sylvania Order Code: 64450
• Manufacturer Part Number: 64450-MS400-BU-ONLY
• UPC: 46135644504
• ANSI Code: M59/S
• Lamp Type: Metal Halide HID — Metalarc
• Color Temp 4000K Cool White
• Wattage: 400W
• CRI: 65
• Rated Average Life: 20,000 hours
• Base Type: E39 Mogul Screw
• Overall Length / Diameter (MOL): (MOL): 8.31 in x Diameter 3.5 in
• Burn / Operating Position: Base-Up ±15°
• Fixture Compatibility: Enclosed or Open Fixtures (with restrictions)
• Start Type: Probe-Start — standard MH ballast
• Mercury Content: Contains mercury — dispose per local regulations.

Product Overview

The Sylvania 64450 MS400/BU-ONLY is a 400W Metal Halide HID — Metalarc for commercial, industrial, and outdoor area lighting in HID fixtures. CRI 65. Rated life: 20,000 hours. Fixture: Enclosed or Open Fixtures (with restrictions).

Requires a compatible HID ballast rated for 400W metal halide. Allow 5–10 minutes warm-up time for full output. Hot restrike time: 7–12 minutes. Mercury content — dispose per local regulations.

Applications

• Commercial and industrial HID lighting – Commercial, industrial, and outdoor area lighting in hid fixtures.
• Retrofit and maintenance replacement – Verify ANSI code, wattage, and burn position before ordering. Match ANSI code to ballast specification.

Safety and Installation

• Compatible HID ballast required. Match ballast ANSI code.
• Enclosed fixture required. Use only in enclosed fixtures rated for this lamp.
• Allow warm-up time: 5–10 minutes for full output.
• Hot restrike: Allow 7–12 minutes after switching off before restarting.
• UV radiation: This lamp emits UV radiation. Use only in fixtures with UV-protective shielding.
• Mercury disposal: Contains mercury — dispose per local lamp recycling regulations.

Ordering Information

• Brand: Sylvania
• Series: Metalarc
• Sylvania Order Code: 64450
• ANSI Code: M59/S
• UPC: 46135644504
• Wattage: 400W
• Base: E39 Mogul Screw
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

Compliance

• Contains mercury — dispose per local lamp recycling regulations.
• Verify RoHS and Prop 65 compliance with Sylvania specification sheet.

ADL Supply recommends confirming all specifications with the Sylvania product data sheet prior to installation.