Replacement Light Bulb for GE HR400A33 - 400W E39 ED37

Replacement for the GE HR400A33 delivers 400 watts of output in an ED37 shape with a white finish. This metal halide option produces 23000 lumens at 4000 color temperature and maintains operation across a 24000 hour rated life with a CRI of 45.

Key Features & Benefits

• 400 watt power rating supports consistent illumination levels
• ED37 shape fits fixtures requiring this specific form factor
• 4000 color temperature provides neutral white light output
• 23000 lumens output measured at standard test conditions
• 24000 hour life rating based on manufacturer testing

Product Specifications

• Watts: 400
• Shape: ED37
• Color Temp: 4000
• Lumens: 23000
• Life: 24000 hours
• CRI: 45
• Bulb Finish: WHITE
• Base: E39 MOGUL SCREW BASE 39MM DIAMETER (E40)

Replacement Compatibility

Direct match for HR400A33 and equivalent 400 watt metal halide units in existing fixtures using E39 base.

Discover the Perfect Replacement

Confirm your fixture requirements and select this bulb to restore specified light output and operating hours in your current setup.

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.