The 200-HgCal-365 is the longwave version of the 200-HgCal-254 low pressure mercury lamp used for spectral calibration and reference. The quartz tube is sheathed with a blue filter to absorb visible light, increasing the lighted length to 2.25" (57.2mm), overall length to 4.75", and broadening the outside diameter to 0.375" (9.5mm). The principal emission is a 365nm (longwave) by converting the power from 254nm.

The lamp can be placed into a vacuum chamber without a handle.

Power Supply
Primary voltage
115VAC/60Hz ; 220V/50Hz
Lamp current
18 mA
Size (LxWxH)
16 x 9.3 x 5.8 cm (6.3” x 3.7” x 2.3”)

Lamp
Lamp Current
20 mA AC
Typical Intensity 365nm @ 0.75"
1213 µW/cm²
Lamp Operating Voltage
280 V
Lamp Body Temperature
120ºC