you can get LED downlight 12W below $100 without installation, im doing for my customer also. brightness same with 2X18W PLC downlight, they give 1 year warranty. Dont buy LED Tube, not bright enough and exp. LED light downlight can last few year , if spoilt normally its the driver spoilt not the LED. normal PLC tube last one year or less. Now they also got good 4ft LED tube can last longer than normal T5 tube , cost 2X but save your time & $ for replace T5 tube . hope this help