Main bulb 6V 20W Halogen for Topcon Slit Lamp Models:
SL-1E, SL-2D, SL-D2, SL-D4, SL-D4Z, SL-2E, SL-2ED, SL-3E, SL-3G, SL-4E, SL-7E
Metro Slit Lamp Bulb #40340-20700
SKU: 40340-20700
Bulbs are not returnable
NYC/NJ Area 1-732-727-0607 (Corporate Office)
Upstate New York Area 1-585-352-6652