1)Spec:LT05056 Hosobuchi OP2900 6V 4.5A for Haag Streit Slit Lamp HS-366, BT366, HS366, 7171, 22403, 900930 Leica light bulbs LT05056 Hosobuchi OP2900 6V 4.5A for Haag Streit Slit Lamp HS-366, BT366, HS366, 7171, 22403, 900930 Leica Leica light bulb 6V 4.5A for Haag Streit Slit Lamp HS-366, BT366, HS366, 7171, 22403, 900930