3pcs blue light ac

Buy 3pcs Blue Light AC 60-500V 0-100A D18 Square LED Digital Dual Display Voltmeter Ammeter Voltage Gaug for R335.00

Buy 3pcs Blue Light Mini 0.36 Inch DC Current Meter DC0-999mA 4-30V Digital Display With Reverse for R303.01

Buy 5pcs Blue Light AC 60-500V 0-100A D18 Square LED Digital Dual Display Voltmeter for R540.03

Buy 3pcs Blue 22MM AD16 AD16-22DSV Type AC 60-500V Mini Voltage Meter LED Digital Display AC Voltmeter I for R145.00

Buy 3pcs Red 22MM AC 12-500V Voltmeter Square Panel LED Digital Voltage Meter Indicator Light for R155.00

Specifications: 1. Onboard TDA2030A audio power amplifier chip. 2. Mono 18W power amplifier circuit design. 3. Socket onboard horn. 4. The onboard 10 k adjustable resistance, can adjust the volume of the amplification. 5. The onboard power light. 6. Chip has lead to the main pin, can directly input audio signal. 7. Working voltage: 6 - 12V. 8. Board size: 33 x 25 x 23(mm) Package included: 3 x TDA2030A Audio Amplifier Board Module

Buy 10pcs 22mm AC 50-380V Thermometer Indicator Blue Light LED Digital Display for R636.38

Buy 5pcs Blue 22MM AC 12-500V Voltmeter Square Panel LED Digital Voltage Meter Indicator Light for R205.10

3pcs AC-DC 12V 0.5A 6W Switching Power Bare Board For LED Stage Light AC 100-240V To DC 12V Description: 1. Input voltage: AC 100V-240V 50-60Hz2. Output voltage: DC 12V3. Output current: 500ma4. Output power: 6W5. Size: 5.5 x 3.5 x 1.9cmPackage included:3 x AC-DC 12V 500ma 6W switching power module

3pcs 4X4X4 Blue LED Light Cube Kit 3D LED DIY Kit For Arduino DIY Kit Package contains 1 X item of the smallest listed variant.

Feature: We all know what an AC dimmer is; for those who don’t, it’s a kind of a circuit which can control the amount of AC voltage to be given to any device. You can see them in a fan regulator or a light dimmer switch. It's good for a smart home if you need to turn the lighting on and off slowly. The lamp is slow damped, this creates a pleasant effect. Also can control AC/DC motor, electric pump, tools. Pulse Skip Modulation: Another way of doing this is by Pulse Skip Modulation. With PSM, one or more full cycles (sinuswaves) are transferred to the load and then one or more cycles are not. Though effective, it is not a good way to dim lights as there is a chance for flickering. Though it might be tempting, in PSM one should always allow a full sinuswave to be passed to the load, not a half sinus as in that case the load will be fed factually from DC which is not a good thing for most AC loads. The difference between leading edge cutting and PSM is mainly in the software: in both cases one will need a circuit that detects the zero crossing and that can control a triac. A circuit that can do this is easy to build: The zero crossing is directly derived from the rectified mains AC lines – via an optocoupler of course- and gives a signal every time the wave goes through zero. Because the sine wave first goes through double phased rectification, the zero-crossing signal is given regardless whether the sinus wave goes up through zero or down through zero. This signal then can be used to trigger an interrupt in the Arduino. Package includes: 3 x AC Light Dimmer Module

Buy 3pcs 5V Breathing Light Kits DIY LED Flash Kit Blue Flashing Lamp Electronic Se for R161.17

Buy 3pcs LM358 Breathing Light Parts Electronic DIY Blue LED Flash Lamp Electronic for R161.47

Buy 3pcs 4X4X4 Blue LED Light Cube Kit 3D LED DIY Kit For DIY Kit for R444.39

Description: Display Type: Digital Only Operating Temperature: -20 ~ +65￢ﾄﾃ Power Supply: AC Measuring Range: AC70-500V Working current: DIY Supplies: Electrical Dimensions: 48*29*22 mm LED digit: 0.56" digit Display Color: Blue Supply Voltage: No Need (two-wire system) Accuracy: +/- 1% Input impedance: >1MΩ Measuring speed: About 300mS/time Wire length: 200MM Package included: 3 x Blue 0.56 Inch AC70-500V Mini Digital Voltmeter Voltage Panel Meter