The Doug Fleenor Design DMX24DIM and DMX24DIM-2U are top - notch 24 - output dimmers perfect for high - efficacy loads. They consume low idle power and have minimal losses. Ideal for various loads like Christmas light strings (both LED and incandescent) and low - power lamps such as LED, neon, compact fluorescent, electronic and magnetic low - voltage, halogen, and incandescent. Common uses include Christmas tree lighting, cue lights, signs, marquees, and practicals. The DMX24DIM is a single - space rack - mount unit, while the DMX24DIM - 2U is a two - space one, both with removable rack ears. Airflow goes from front to side. There are half - inch holes for half couplers or C clamps. The enclosures come with a carry handle and a 3/8 - inch safety cable slot. Technical details: The input circuit has a protected EIA - 485 receiver (LT1785). It can withstand up to 60 Volts continuous and 15KV transients without damage. The input signal ranges from 0.2 to 12 volts and supports DMX512, DMX512/1990, or DMX512 - A. The input connector is a gold - plated 5 - pin male XLR (Neutrik D - 1 series), with a 3 - pin XLR as an option. There's a gold - plated 5 - pin female XLR for input pass - through. It requires external termination for unused pass - through connectors. The power input is 120 VAC 60 Hz 20 Amps at full load, with an actual current draw of 0.05A plus the connected load. The power input connector is a NEMA 5 - 15P on an 18 - inch 12 - gauge pigtail, and it needs a 20A connector for loads over 1800 Watts. The idle power is less than 1 Watt. Each output can handle a maximum of 0.83 Amps at 120 VAC 60 Hz, and there's no minimum load requirement. The DMX24DIM measures 1.7'H - 10.5'D - 19'W (17' behind rack ears) and weighs 7 pounds, while the DMX24DIM - 2U is 3.4'H - 10.5'D - 19'W (17' behind rack ears) and also weighs 7 pounds.

Using the Doug Fleenor Design DMX dimmers is easy. First, connect your lighting loads to the appropriate outputs. Make sure to use the correct power input connector according to your load. If your load is over 1800 Watts, replace the standard 15A connector with a 20A one. Connect the input signal using the gold - plated XLR connectors. When it comes to the pass - through connectors, if you're not using them, remember to terminate them externally. As for airflow, ensure there's enough space in front and on the side of the unit for proper ventilation. When moving the dimmers, you can use the carry handle, and for safety, you can attach a cable through the 3/8 - inch slot. Maintenance is simple. Keep the unit clean and free from dust. Check the connectors regularly for any signs of wear or damage. If you experience any issues with the input protection or other functions, it's best to consult a professional technician.