Maximum Overall Length: 2.52 inches Average Rated Life: 100 hours Equipment Manufacturer: Haag Streit Instrument Type: Slit Lamp Equipment Models: BA-904, BM-900, BP-900, BQ-900, BX-900, Model 900 (Non-Halogen) This 6 Volt incandescent bulb emits 360 lumens and is rated for 4.5 Amps. It is appropriate for all non-halogen and non-LED Haag Streit slit lamp models.