I have several LED strips pulling about 16 amps at 12V. They are being PWMed by arduinos. Being lazy not wanting to do a lot of hardware work I used BTS7960 bridges to drive them. I connected them as high side driver (lower RDSon on the high side) and the LEDs low side to ground. They work very well and barely get warm. They have been operating for several years. Be sure to use appropriate gauge wire.