The Germ Guardian LB4000 is the correct replacement for the following models of air purifiers:
The Germ Guardian Replacement UVC Bulb for 4800 Series is a UV-C bulb and uses 5 watts of power. This Germ Guardian replacement bulb eliminates over 98% of targeted airborne bacteria. This UV-C light bulb should be changed every 10 to 12 months, depending on use.
The Germ Guardian LB4000 specifications: