HLG-40H-24

Voltage - Isolation:	3.75kV
Approvals:	CB, CCC, CE, cURus, PSE, RCM, TUV
Mounting Type:	Chassis Mount
Size / Dimension:	5.80" L x 2.42" W x 1.45" H (147.2mm x 61.5mm x 36.8mm)
Termination Style:	Wire Leads
Efficiency:	88%
Operating Temperature:	-40°C ~ 80°C
Ratings:	IP67
Features:	OCP, OTP, OVP, SCP
Dimming:	--
Series:	HLG-40H
Power (Watts):	40W
Current - Output (Max):	1.67A
Voltage - Output:	14.4 ~ 24 V
Voltage - Input (Max):	305VAC
Voltage - Input (Min):	90VAC
Number of Outputs:	1
Topology:	AC DC Converter
Type:	Constant Current, Voltage
Part Status:	Active

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The LED driver is an important element in the lighting engineering and application. It drives the LED and coordinates the voltage, current and power characteristics of the LED, so as to achieve desired light effect. HLG-40H-24 is one of these specialized LED drivers that provides a constant current output of 24V, 40W. It is suitable for indoor LED lighting applications, like LED street lights, wall washers and so on.This driver features a wide input voltage range of 90-305VAC, offering better compatibility with LED luminaires operating from a variety of AC voltage sources. With IP67 rating, the unit can resist water immersion to a depth of one meter, providing better protection for outdoor applications. Soft start and over temperature protection provides improved safety performance. In addition, the HLG-40H-24 also has a feature of Short-Circuit, Overload, and Over-Voltage Protection, which helps secure the service life of the lamps.The working principle of HLG-40H-24 follows a circuit topology - Pulse Width Modulation. It is a circuit method in which digital logic states can be used to control a high signal current, making the usage of integrated switching regulators more frequent in these times.In this circuit, the control signal that is provided to the PWM control circuit is a signal that is pressed a certain amount of time, and then released for a short period of time. With this technique, the LED driver can modulate the voltage or the amount of light emitted by the LED. This helps to prevent the driver from constantly over- or under-electrifying the LED which in turn extends its lifetime and prevents flickering.At the same time, this technique provides good stability for the LEDs during the entire usage period, ensuring adequate brightness and clarity. The spread voltage of the led driver is very small, and the output current is generally constant and can remain almost unchanged for a period of time. Using this driver requires no capacitor to filter the output ripple, which also enhances the electrical performance and it can regulate and maintain the stability of the output current when the input voltage changes.In conclusion, the HLG-40H-24 LED driver is widely applied in varying indoor LED lighting applications When it is in use, it can provide constant current output at 24V, 40W and it follows Pulse Width Modulation topology. The features include a wide input voltage range of 90-305VAC, IP67 protection rating, soft start and over temperature protection, and Short-Circuit, Overload, and Over-Voltage Protection. Therefore, such an LED driver can provide safe and stable performance while being used in indoor LED lighting applications.

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