The Metal Halide Bulb, model MS400/BU-ONLY (64450), is specified at 400W, 4000K. This model is a maintenance lamp for an existing HID luminaire using the matching lamp system. Choose it by the ballast lamp designation and base, not by wattage alone.
The E39 lamp base is the physical interface for this model. Choose 4000K when that colour matches neighbouring lights in the existing installation; this choice does not by itself establish the required brightness. The sales unit for this model is a pack of 6.
Buying tip: Check the existing socket for the E39 base and compare the available clearance with the lamp dimensions.
| Brands | Major Brand |
|---|---|
| Color Temperature | 4000K |
| Life Hours | 15,000 |
| Wattage | 400 |
| Lumens | 36,000 |
| Product | Metal Halide |
| Color | Natural White |
| MPN ( Part No.) | MS400/BU-ONLY (64450) |
| Base Type | E39 |
| Rating | Enclosed Fixture Only |
| Pack Quantity | 6 |