Nostalgic ST18 Medium Base Antique Hairpin bulb is an excellent replica of antique light bulbs and is the perfect complement to any vintage or contemporary decor. Features defined steeple and intricate filament design giving off a warm amber glow. 40 watt incandescent available in Light Amber (2200K color temperature, 135 lumens) or Smoke (1800K color temperature, 100 lumens). 3,000 hour average lamp life. 2.25 inch diameter x 4.8 inch height.