AliEXpress Diymore LED Lamp Driver PWM Dimmer DC7-30V to DC1.2-28V 350mA 1W DC-DC Converter Buck Step Down Module

https://es.aliexpress.com/item/32657349303.html?spm=a2g0o.search0302.0.0.35d25296sO9vHl&algo_pvid=c7968d44-2589-4d7f-ba3c-297d1ec4ad00&algo_expid=c7968d44-2589-4d7f-ba3c-297d1ec4ad00-11&btsid=0bb0623216109517960011056e5aec&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

AliEXpres Diymore-DC-DC Step-Down Button Adjustable Power Supply Module with LCD Display DC5-23V to DC0-16.5V 3A US$ 2.84

https://es.aliexpress.com/item/32804283659.html?spm=a2g0o.detail.0.0.748aa606o3GnE6&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.169870.0&scm_id=1007.13339.169870.0&scm-url=1007.13339.169870.0&pvid=e67e3177-de63-421a-b51e-7751d511274c&_t=gps-id:pcDetailBottomMoreThisSeller,scm-url:1007.13339.169870.0,pvid:e67e3177-de63-421a-b51e-7751d511274c,tpp_buckets:668%230%23131923%2330_668%23888%233325%2319_668%232846%238107%231934_668%232717%237561%23371_668%231000022185%231000066059%230_668%233468%2315609%23271

If you later want to do precise PWM LED control, you can consider this cheapy US$2 goody:

XY-LPWM 1Hz-150Khz, PWM Pulse Frequency Cycle Adjustable Signal Generator Module 3.3V-30V LCD Display US$1.72
https://es.aliexpress.com/item/32873543514.html?spm=a2g0o.productlist.0.0.3caf7dc2GNY8ii&algo_pvid=27acf10e-c488-4e68-9e29-433f7e1d6c63&algo_expid=27acf10e-c488-4e68-9e29-433f7e1d6c63-22&btsid=0b0a555d16109531874763261e6fc9&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

Control 3W RGB LED with arduino

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I’m not sure how to do this, I have this led https://www.aliexpress.com/item/4000289954769.html?spm=a2g0s.9042311.0.0.27424c4dKIwSHh the 4 pin 3w rgb led. I want to be able to control it using an Arduino (ideally I would control 4 – 6 leds). By controlling I mean not only control the color but also turning it on and off.arduinoledShareEditFollowFlagasked 7 hours agoGB53155 bronze badges

• 1I think this question can be answered with a quick google search. – Damien 6 hours ago
• 1I’m voting to close this question because it lacks of research – Damien 6 hours ago
• 1You need a 350 mA PWM low side driver for 3 ch. and a large heat sink. What’s the problem? Choosing a 1V 15A FET? – Tony Stewart Sunnyskyguy EE75 6 hours ago 
• 1You need 3 switches, controlled by arduino. Best choise MOSFETs. – user263983 5 hours ago
• Your web link is very good, because it shows a big variety of products, and also give detailed description of specifications of physical and electrical properties. For newbies, I would recommend to prototype with low power (1W per LED), and more pins (2 pin per LED). My suggestion is this one: 3W RGB 6 Pin 3V 350mA Power LED i.imgur.com/UgfFkHj.jpg. – tlfong01 1 hour ago    
• (1) I suggest low voltage (3V) and low power (1W), low current (350mA) because for higher power, 6V/12, 3~5A power LEDs you need 5V/12V power MOSFET PWM switches. (2) I suggest 6 pin, instead of 4 pin (fixed common Cathode/Anode) modules, because you have more flexibility in circuit design. (3) For playing with power LED PWM, I suggest to try the following cheapy (US$0.9) PWM module: AliEXpress Diymore LED Lamp Driver PWM Dimmer DC7-30V to DC1.2-28V 350mA 1W DC-DC Converter Buck Step Down Module / to continue, … – tlfong01 45 mins ago    
• es.aliexpress.com/item/… Have a great power LED lamp project. Good luck. Cheers. – tlfong01 43 mins ago   
• I forgot two more things. (1) For preliminary testing, you don’t need to use Arduino. You can use the following handy testing tool to get the Voltage/Current/Brightness charteristics: AliEXpres Diymore-DC-DC Step-Down Button Adjustable Power Supply Module with LCD Display DC5-23V to DC0-16.5V 3A US$ 2.84: / to continue, … – tlfong01 36 mins ago   
• es.aliexpress.com/item/…. – tlfong01 36 mins ago   
• If you later want to do precise PWM LED control, you can consider this cheapy US$2 goody: XY-LPWM 1Hz-150Khz, PWM Pulse Frequency Cycle Adjustable Signal Generator Module 3.3V-30V LCD Display US$1.72 es.aliexpress.com/item/…. Cheers. – tlfong01 29 mins ago   

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