PHILIPS 36-watt, twin-tube 4-Pin Long Compact Fluorescent UVB-Narrowband (311 nm peak)
Twin-tube long compact fluorescent bulbs have very high power density and provide much greater irradiance than 2-foot, single-tube T12 bulb types.
Fits SolRx: 500‑Series Hand/Foot & Spot devices
To see a video of how to change the lamps in your SolRx 500-Series device, click here.
Also Fits: NBC Handisol II®, Daavlin 1 Series and 4 Series, Ultralite HFDL28®, Waldmann UV182® & UV802L, Dr. Honle Dermalight 500, Kernel KN-4006BL2