In fact, the board is designed to support three different applications. For the landscape lighting application, the input is typically 12 to 16 volts AC with the rectifier and a bulk capacitor on the board. For the backlighting applications for signs, where customers are typically wanting to use a 24-volt DC supply, you could remove the bridge and drive the device directly into the DC voltage. The bulk capacitor can be replaced by a much smaller capacitor. Automotive applications, typically require reverse battery protection, so three of the diodes can be removed and the fourth remains for reverse battery.