Replacement Light Bulb for HOWARD MH400/U/ED28 Industrial Commercial Outdoor - 400W E39 4000K

Replacement for the HOWARD MH400/U/ED28 mercury vapor lamp, this ED28 shape bulb operates at 400 watts with a clear finish to maintain consistent output in existing fixtures.

Key Features & Benefits

• Produces 36000 lumens for area illumination needs
• 4000K color temperature provides neutral white light
• 20000 hour rated life reduces replacement frequency
• CRI of 65 for color rendering in work environments
• Clear bulb finish supports maximum light transmission

Product Specifications

• Watts: 400
• Base: E39 Mogul Screw
• Color Temp: 4000K
• Lumens: 36000
• Life: 20000 hours

Compatible with fixtures using HOWARD MH400/U/ED28 and equivalent HID mercury lamps in industrial, commercial, and outdoor applications.

Discover the Perfect Replacement

Confirm your fixture requirements and select this bulb to restore proper lighting performance in your current system.

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.