Hydro-Safe HSUV-SS-8 Replacement UVC Light Bulb Coating:Shatterproof Coating 1 unit in each room

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

User friendly pre-determined terminal points (dry contact) for easy integration into your equipment upstream such as control stop

High pressure sodium lamps

Frequency: 50/60 Hz

Hydro-Safe HSUV-SS-8 Replacement UVC Light Bulb Coating:Shatterproof Coating 1 unit in each room4 Pin Stepped on a Single End 38 Watt Germicidal Water Treatment Bulb The Hydro Safe HSUV SS 8 Replacement UVC Light Bulb is a four pin stepped on a single end 38 Watts germicidal water treatment bulb. The replacement UVC light bulb has a total length of 31. 89 inches and an arc length of 28. 9 inches. The lamp has a voltage of 90V and a wattage of 38 Watts. The ceramic bulb has a rated life of 12,000 hours after which we recommend that you replace