Siemens - LP4040 UV Light Bulb for Germicidal Water Treatment TUV PL-L 36W the lamp bulb has a

the lamp bulb has a total length of 12 inches and a tube diameter of 19mm

99% protection against UV-A

like most fly lights

1 unit in each room is probably enough but if you have a noticeable infestation

DesignJet H 35000

Siemens - LP4040 UV Light Bulb for Germicidal Water Treatment TUV PL-L 36W the lamp bulb has aGuaranteed Replacement Ultraviolet (UV) Bulb Single Pin on Both Ends 41 Watts 33. 2 Inch Length Lamp Worry Free Performance for 1 Year The Siemens LP4040 UV Light Bulb For Germicidal Water Treatment provides you a worry free performance for an average lifespan of 10,000 hours. The 33. 2" bulb has a base of single pin on both ends and a wavelength range of 254nm. The 41 Watts bulb is compatible with sterilization filters, sanitizers and purifiers. UV