Double spectral power supply pack + Hg-Na bulbs (9 pins)

Mercury and Sodium bulbs are the most commonly used.

Sodium provides both a quasi-monochromatic reference and a doublet, while Mercury provides spaced lines, clearly visible for calibration purposes.

This kit offers an integrated set with a dual-output power supply for a simple and easy-to-transport solution.

- Power supply: . Universal dual output block (204315) . Osram 9-pin housing (202567 x2) - Bulbs: . Sodium (Na) Osram 9-pin . Mercury (Hg) Osram 9-pin