Best Deals for Remote Control Switch,Step Down Module,Headlamp

Celwin 07/07/2020

Works well for turning on/off power to a 12 volt pump for my camping hot water unit. Occasionally gives an unwanted 'on' signal, but I'm not sure if it's getting interference somewhere or from the switch being operated with wet kids hands...

Geekcreit® 433MHz DC 12V 10A Relay 1CH Channel Wireless RF Remote Control Switch Transmitter With Receiver

₹812.43 ₹1,200.19

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Celwin 07/07/2020

Using this to reduce voltage from a solar panel for a house (40 something volts) to be used for 12 volt things (such as lights). Unit works really well and doesn't get hot from what I'm pulling from it so far. Bought it so that I can use it when camping, as I have many 48 volt panels.

Geekcreit® DC 6-40V To 1.2-36V 300W 20A Constant Current Adjustable Buck Converter Step Down Module Board

₹857.04

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Celwin 07/07/2020

Wow!! What a great head torch!! Best I've ever had! Great light and penetration. Love the adjustable beam and good quality headband and tilting function. I was worried that it might be too heavy, but it isn't a problem. It really does need the 3 18650 batteries, as it draws quite a few watts. Carry spares if you're going away from home with it. Awesome unit. Highly recommended.

XANES® XHP70 2000LM Headlamp 18650 Battery USB Interface 3 Modes Telescopic Zoom Waterproof Camping

₹2,311.17 ₹3,602.30

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Celwin 07/07/2020

Great little set of fridge magnets. Not strong enough for multiple pieces of paper, but still very good value for money. Will buy more next order.

14pcs Strong Magnetic Thumbtacks Neodymium Pins Fridge Magnet Teaching Painting Thumbtack

₹469.27 ₹1,200.19

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Celwin 07/07/2020

Great smallish magnet for my girls going magnet fishing. Not strong enough to be a danger for a 5 year old's fingers.

Effetool 20mm 9kg Neodymium Recovery Magnet Metal Detector Circular Eyebolt Magnet Red/Yellow/Blue

₹270.24 ₹567.93

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Celwin 07/07/2020

Great high-powered magnet for magnet fishing for my boys.

Effetool 36x30mm 50KG Neodymium Recovery Magnet Red/Yellow/Blue Eyebolt Hook Magnet Metal Detector

₹588.52 ₹1,200.19

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Celwin 07/07/2020

Works really well for powering low-powered devices, such as a propeller running in my fish tank, for my boys to mess with. Running off a 12 volt battery or 2S LiPo, the voltage when turned down low generally stops the motor being run so is a good 'off' position. Great unit and will buy another one soon.

Geekcreit® PWM DC Motor Speed Controller Speed Switch Module 6V/12V/24V/28V 3A 1203B

₹295.97 ₹771.25

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Celwin 07/07/2020

Great holding power. Bought some for my boys so that they could try magnet fishing. Be careful letting two snap together, as the magnet breaks. It doesn't fall out though, as the holding power holds it safely inside the mount.

Effetool 36x30mm 50KG Neodymium Recovery Magnet Red/Yellow/Blue Eyebolt Hook Magnet Metal Detector

₹588.52 ₹1,200.19

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Celwin 07/07/2020

Great value Arduino board. No problems with it.

Geekcreit® UNO R3 ATmega16U2 AVR USB Development Main Board Geekcreit for Arduino - products that work with official Arduino boards

₹1,200.19 ₹1,972.30

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Celwin 07/07/2020

Awesome unit that has not given any problems, apart from being attached to the battery in reverse... That killed the last one...

MPPT 5A Solar Panel Regulator Controller Battery Charging 9V 12V 24V Automatic Switch

₹889.64 ₹1,457.56

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MPPT Solar Panel Controller 5A DC-DC Step Down CC/CV Charging Module Display LED

₹935.11 ₹1,371.77

Q: Is it possible to get an explanation for each adjustment screw? Please - and together with a picture of the controller with all the adjustment screws marked? Thank you - great device if it works! HEs

Asked by HEs on 2018-02-13 01:29:25

Celwin mgwerner explains it really well. After reading his labels, I was able to make it work following a bit of fiddling. Be aware that turning the mppt screw too far will stop it from producing any power. Watch the output current while slowly turning the mppt screw to find the sweet spot.

2018-10-27 12:03:19 Helpful (4)

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MPPT Solar Panel Controller 5A DC-DC Step Down CC/CV Charging Module Display LED

₹935.11 ₹1,371.77

Q: hi can use this MPPT for charging Li-ion NMC cells 7s?

Asked by Jeff Wezel on 2018-03-12 11:57:13

Celwin You sure can. You just need to know what the charge termination voltage needs to be. Once set, all should be fine. It will reduce the output amps as it nears the full-charge voltage, where the led turns green.

2018-10-26 11:55:46 Helpful (1)

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Celwin 16/10/2018

Nice powerful motor, but consumes a lot of current when standing still and when set to run slow. Couldn't use it on an automatic chook door using arduino and a stand-alone solar powered system. Maybe it's my code... I'll use it somewhere for some invention though!