120 Pieces (60 x 2 Pack) Philips 149773 50A/RS/TF 50W Frost Silicone 120V Rough Service A19 Incandescent Lamp
- Models available include 254nm shortwave, 365nm longwave or a combination shortwave/longwave version.
- Shortwave/longwave version comes with a snap-on wavelength selector for switching between wavelengths.