The Germ Guardian LB1000 is the correct replacement bulb for the following air sanitizers:
The Germ Guardian Replacement Bulb for GG1000 - LB1000 is a replacement UV-C bulb for the Germ Guardian Model GG1000, GG1000CA, and GGH200 UVC Air Sanitizers. This UVC light bulb is 3.5 watts and helps your air sanitizer eliminate over 98% of targeted airborne bacteria. Be sure to replace this air purifier light bulb every 6-8 depends, depending on usage, in order to achieve the best possible air filtration results.
Germ Guardian Replacement Bulb for GG1000 - LB1000 specifications: