8000165 Ushio SM-31-74-28 30W 120V BA15d Clear Incandescent Lamp Ushio OEM SM-31-74-28 Incandescent Med/Sci Bulb Used in microscopes, medical, and scientific lighting 30 Watts 120 Volts Single Ended BA15d Double Contact Bayonet Base S-11 Bulb Type 200 Hours Rated Average Life C-13 Filament Clear Lamp with Silver Reflector 2.375 in (60.33 mm) Max Overall Length 1.38 in (35 mm) Bulb Diameter RoHS Compliant Other part numbers, SM-31-74-28, 31-74-24, 78952, 78508, OP3609 Please Note: -Buyer pays PayPal. -Free domestic shipping is by USPS First Class Mail. -All orders placed by 3:00PM EST, ship same day Monday-Friday. -USPS tracking email will follow the evening of shipment. -International buyers, USPS First Class International can take up to 45 days to arrive. Faster options are available during checkout. -Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. -Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.