Keywords you may need:

Sensors
Modules
      Esp8266
Board
      R3&ATMEGA2560
      NodeMCU
Sheild
      Screw sheild
      Nano Sheild
Relay
Temperature Controller
Displays
      OLED LED&RGB
      LCR
Amplifier
Power supply
     Step Up
     Step down
     Converter
     Switch
GPS
Light
Wireless/Wifi

Dear customer:
Thank you for visit our store,we are proffessional "Business & Industrie" seller for 10 years,our main products included:Sensors,modules devolpment board, LED displays, other IC procuts an so on,any question about DIY robot,Arduino,or Raspberry Pi will be welcome to discuss with us,we will try our best to supply the most advanced product and price,(if we sale more,the cost of made one product will be reduce and we will change or price to make you save more.
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DC-DC 4.5-32V to 5V-55V XL6009 Boost Step-up Module Adjustable LED Voltmeter New

Description:
Module features: Non-isolated boost
Rectification of non-synchronous: rectification
Input voltage 4.5V - 32V
Output voltage 5V - 35V
Input Current 4A (largest)
Conversion efficiency of 94% (maximum)
Typical efficiency of 85%
Switching Frequency 400KHz
Output ripple 50 mV
Load Regulation ± 0.5%
Voltage regulation ± 0.5%
Operating temperature -40 ℃ to +85 ℃
Dimensions 63.5 (L) * 36 (W)

Package included:

1 x XL6009 Boost Step-up Module

DataCaciques