USB Port LM2596 DC Buck Step Down Converter Module Voltage Regulator 

Voltmeter

Features:

• 100% Brand new and high quality
• This module power output is affect by the module itself-capacity and pre-and post-class load and other factors; the following data for professional equipment
• Wide Input voltage: 4.5-40V.
• Output Voltage: 1.25-37V (Adjustable).
• Output current: rated current 2A, 3A MAX ( Heat-sink Needed).
• If you need its output power greater than 2A/10W, please add with heat-sink.
• Conversion efficiency: Up to 92% (output voltage higher, the higher the efficiency).
• Switching Frequency: 150KHz.
• Rectifier: Non-Synchronous Rectification.
• Module Properties: Non-isolated step-down module (buck).
• Short circuit protection: current limiting, since the recovery.
• Operating temperature: Industrial grade (-40 to +85 ) (output power 10W or less).
• Full load temperature rise: 40.
• Load regulation: ± 0.5%
• Voltage regulation: ± 2.5%
• Dynamic response speed: 5% 200uS.
• Size:8x4x1.5cm(approx)

Package Included:

• 1 x USB Port LM2596 DC Buck Step Down Converter Module Voltage Regulator Voltmeter

NE555 Duty Cycle and Frequency Adjustable Module Square Wave rectangular wave

Brand new with high quality
Main chip: NE555;
Input Voltage: 5V-15VDC. when power supply is 5V , the output current can be 15MA around;when 12V power supply, the output current can 35MA around;
Input current: >=100MA
Output amplitude: 4.2V V-PP to 11.4V V-PP. (Different input voltage, the output amplitude will be different)
Maximum output current: >=15MA (when 5V power supply, V-PP greater than 50%),
>=35MA (when 12V power supply, V-PP greater than 50%)
Output with LED indication (low level ,LED will on; high level, LED will off; low frequency, the LED flashes);
Size: Approx.3.1 * 2.4cm/1.22 * 0.94inch;

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Don't hesitate, bid now and never miss it. You will receive a parcel contains as below.

Package Included:

• 1 x NE555 Duty Cycle and Frequency Adjustable Module Square Wave rectangular

40A 10-50V DC 12V 24V 48V 2000W MAX Motor Speed Control PWM HHO RC Controller

• 100% brand new and high quality
• Power requirement:10-50VDC
• Rated current:40A（Maximum output current）
• Frequency:12000HZ
• Control Motor Power:0.01-2000W,
• 12V:480W(max),24V:960W(max)
• 36V:1440W(max),50V:2000W(max)
• Regulation range:5-100%
• PCB Size:90x51mm(inch:3.5"x2")
• Case size:105x55x40mm(inch:4"x2.2"x1.6")
• Quantity:1PC