So I took a 1/4 sheet 16ga aluminum cookie sheet., $6.00
4 Citizen CLU038-1210 cob led 3500k 90cri 98 watts $12.00
LUMAWISE Z45 LED HOLDER 19X19, $7.00
100K OHM Linear Taper Rotary Potentiometer, $5.00
Mean Well HLG-185H-C1400B, $45.00
Total cost, $75.00