MERCURY VAPOUR LAMP It consist of mercury choke of Cat. No. 1626, metal stand of Cat. No. 1627 & mercury vapor lamp of Cat. No. 1629. Phillips make mercury vapour lamp in supplied . With a rated output of 80 W , this source provides sufficient intensity for almost any experiment. With a good light source student can investigate energy levels using a spectrometer. One Stop Wholesale One Request, Multiples Quotes One Stop divergent and cost effective solutions as per customer’s requirement