Glasco UV L-501414 Replacement UVC Light Bulb 01-0012-02 All of Standard features mentioned

All of Standard features mentioned above plus:

Arc Length: 19

GSL540T5L CB

the lamp produces lesser and lesser UV light and more heat

Glasco UV L-501414 Replacement UVC Light Bulb 01-0012-02 All of Standard features mentioned4 Pin on a Single End 16 Watt Germicidal Water Treatment Bulb The Glasco UV L 501414 Replacement UVC Light Bulb is a 16 Watt germicidal water treatment bulb that has a total length of 14. 06" and an arc length of 10. 83". The UVC light bulb has a rated life of 10,000 hours and we recommend that you replace the light bulb after this for better germ killing ability. The UVC model is a compatible replacement for the following system models: 250 1608 8060