Difference between Type TL and UL Class P
Type TL LED Driver Program | Class P LED Driver Program | |
Luminaire Report | LED Driver – R/C FKSZ2, made by manufacturer, model cat. no., Type TL.
Specifications included in report: · Input ratings · Input type · Supply connection method
· Output ratings · Output type
· Tref values
· Environmental conditions
Alternate – R/C FKSZ2, Type TL, compliant with Type TL LED driver substitution rules. |
LED Driver – Listed, FKSZ, made by manufacturer, model cat. no., Class P.
Specifications included in report: · Input ratings · Input type · Supply connection method
· Output ratings · Output type
· Environmental conditions
Alternate – Listed FKSZ, Class P, compliant with Class P driver substitution rules. |
Key Notes: | · Documentation of LED Driver provided during original certification
· LED Drivers are typically Recognized · Documentation of critical parameters (input/output electrical parameters, environmental parameters, temperature parameters, etc.) · Inclusion of substitution allowance |
· Documentation of LED Driver provided during original certification
· LED Drivers are typically Listed · Documentation of critical parameters (input/output electrical parameters, environmental parameters, etc.) · Inclusion of substitution allowance
|
Key Differences: | · Includes consideration for temperatures both on the case of the LED Driver as well as information on how hot the LED Driver internal components are getting.
· Temperature information is used to ensure internal components are not exceeding rated temperatures and will ultimately help reliability and lifetime. · Manufacturers may also rely on temperature information for warranty purposes. |
· Does not include temperature parameters in the consideration.
· Program relies on component safety during failure mode. · Greater flexibility afforded due to removal of temperature considerations. · Provides a UL Listing · Potential for compromised performance, lifetime and reliability with temperature considerations removed. |
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