SYLVANIA 64469 – 1000 Watt – BT37 – Metal Halide Reduced Envelope – Unprotected Arc Tube – 3800K – ANSI M47/E – Mogul Base – Universal Burn – M1000/U/BT37
- BT-37 bulb with a Mogul (E39) base
- Gives a neutral white light
- Estimated life of 13.9 years based on 3 hours use per day