Features:SAA COB Downlight1)Australia SAA approval2)LEDs chip: Original CREE 1304/1507/1816/1830, CITIZEN and LUSTROUS COB LED, 2) Driver: Lifud Constant Current Driver3) Housing: ADC12 Aluminum Housing , With reflector,4) Triac Dimmable and 0-10V Dimmable models are optional. 5) AC200-240V or AC100-277V Voltage, 50/60 Hz6) 80 LM/Watt, 90LM/WATT.Specification      Model LED Lumen Power Input Voltage (V) Beam Angle Size (mm) Cut hole (mm) QD-CF1504-12COB CITIZEN CLL022-1203A5840lm12WAC200-240V/AC100-277V38°D140*86D125 (4.92")QD-CF1506-20COB CITIZEN CLL032-1206A51600lm20WAC200-240V/AC100-277V38°D181*91D165 (6.50")QD-CF1508-30COB CITIZEN CLL032-1208A52400lm30WAC200-240V/AC100-277V38°D226*106D210 (8.27")Application installationFAQ 1. Will your SAA COB Downlights fit my existing holes from my old downlights?  Yes, we are pretty confident that we have suitable Downlight that will fit your existing ceiling cutout.2. I have a shallow ceiling recess will your COB Downlights fit this?  Yes, we can supply COB Downlights to fit a small ceiling recess. If you are not sure please use our contact form with the details of the ceiling recess you have available and we will find COB Downlights that will be suitable.  In some cases we can have COB Downlights custom made to suit your application just ask us!3.What is a heatsink on Fix COB Downlight?  The heatsink is the section on the rear of the Fix cob Downlight that looks like fins. The heatsink is designed to dissipate any heat that the LED’s produce.