The metal shell has good heat dissipation and fire prevention. The surface is painted, with fine texture, high strength, good texture, good shielding, strong anti-interference, and symmetrical gourd hanging holes on both sides, which are convenient for installation in any direction. 30W high-power high-frequency all-copper transformer, and has a very high utilization rate of up to 95%, large output power, can meet the normal operation of 1 access control controller, 2 electric bolts or 2 280 kg magnetic locks at the same time The 60*60mm circuit board integrates the unlocking drive delay, the input signal internal and external isolation function, the overall structure is compact and the layout is reasonable Unlocking delay, set on the side of the wiring port, the new upgraded power supply adjustable design, the adjustable time is 0-15 seconds The wiring terminal position can be plugged in and out, which is convenient for wiring, Manufacturer: SEVEQIS