Gamma fitting with Havard Driver - Fitting: "Illumination" WF129QT Driver: "coolLED" CLK20-500P-240-C

Downlight with external driver

500mA constant current driver (fitting specifications unknown)

Main Image

Test Date: 10/08/2018

Dimming Performance

RMT500: Minimum brightness from off: 2% Minimum brightness from max: 2% RML500 Minimum brightness from off: 3% Minimum brightness from max: 3% RAK4-T: Minimum brightness from off: 4% Minimum brightness from max: 4%

Smoothness of Dimming

In general, this fitting performed reasonably well but with some significant areas of criticism. With all dimmers there was a noticeable shimmer while fading between levels, this problem was significantly worse with leading as opposed to trailing edge dimmers. With the RAK4-T it was possible to make the fitting flash at the very minimum output level. The profile was smooth and continuous.

Audible Noise

No audible noise when tested with any recommended dimmer.

Rating for module compatibility

Dimmer Ratings
Dimmer Rating Tested Units Probable Max Units
RMT-500 Good 2 15
RML-500 Good 2 8
RAK4-T Good 2 24
WMT-400 Not Tested - -


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Scope #3