Lamp warmer single no base 250 w type bulb round cone shaped head lamp single on/off switch, stainless steel, 120v/60/1‐ph, 2.1 amps, cord, NEMA 5‐15P, 5 Star Series, work only with Jazz Smooth chafer round ------ Mounting on Jazz chafer ------MODEL # 3878G,3878,3878GS,3878S.