10
Best
Drok Amps
of
January 2021
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Product Highlights- Voltage figures update automatically; high anti-interference capacity.
- The test terminal shares the same earth wire with the power supply.
- Small and lightweight; dual display of voltage and current on the same screen at the same time.
- Does not burn out if power is inversely connected; rapid refresh rate.
- Volt and amp potentiometers for precision adjustment.
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Product Highlights
- Application --- automotive audio video system, boat, truck, marine and dc sound amplifier system overload protection.
- Manual reset arm --- with manual reset button, can act as a master disconnect for circuits, can be used as a kill switch.
- Parameter --- max current 40a; voltage dc 24v
- Purpose --- stop power surge from damaging the device, protect the trolling motor from electrical damage.
- Connection way --- any side for positive, the other is negative.
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Product Highlights
- The computer amplifier adopts packaging 36-pin powersso with piazzola exposed up (epu), which is more convenient to mount a separate heat sink.
- The tda7498 has three types: stand-by mode, the mode of operation normal and (you can set the mute mode cortocircuitando pins provided on the images).
- This card of amplification tda7498 is a dual-btl 100 w + 100 w class d audio amplifier active speaker with single power supply that is designed for home theater systems, and applications.
- It is also equipped with a protection from short circuit and thermal protection, has high efficiency, which is up to 90%.
- Standby mode: all closed circuits in a state of low power mode; mute: all input signals connects to the ground, the cycle of 50%; normal operation modes: forward/backward pwm output signal amplifier works normally.
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Product Highlights
- High precision potentiometer: the buck circuit adopts imported bi potentiometer, with high resolution, sensitivity, reliability.
- Safe protection: the step down power supply module is designed with reverse connection protection, over current protection, overheat protection, short circuit protection.
- Parameters: drok buck converter input voltage range is dc 4-40v, adjustable output voltage range is dc 1.23-37v, max output current is 3a, conversion rate can up to 92%.
- Output indicator: the volt transformer board is with a indicator light, which is green and the display is bright, clearly visible and not glare.
- Note: the dc-dc buck converter can work stably at 3a indoor (test condition temperature is 29 ℃, and humidity is 50%). if it’s for long time work, it is recommended adding heat sink.
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Product Highlights
- General use as an ordinary step down module with over current protection; as battery charger; as constant current led driver module.
- Feature constant current/voltage mode; voltage calibration & current calibration; usb interface; protective case; short circuit protection; over temperature protection; input reverse connection protection.
- Parameter input voltage range dc 6v 32v; output voltage dc 1.5v 32v; max output current 5a, recommend use of within 4.5a; max output power 75w, recommend use of within 50w.
- Display large clear digital lcd display voltage & current value simultaneously.
- Note 1). output voltage is set as around 20v by default, if your input is lower than that, please turn potentiometer anticlockwise for 10 laps or more until voltage changes. 2). the case is packaged unassembled to avoid damage during transit. it needs to be installed after receiving.
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Product Highlights
- Mini led digital voltmeter gauge; easy to red even in dim light
- Has current and voltage calibration potentiometers; with built-in shunt, can do meausremet directly
- Voltmeter meter tester as well as current meter; dual display of voltage & current in the same time
- Motorcycle/car/auto/battery electric voltage meter
- With reverse polarity protection, thus will not burn when power supply connected reversedly
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Product Highlights
- Application --- can be used as battery charge-discharge tester meter for automobile and car battery; as battery capacity monitor for photovoltaic system; as voltage meter, current meter, power meter, etc.
- Protection --- over-voltage protection, over-current protection, over-power protection, over-charged protection, time limitation, etc.
- 7-in-1 multimeter --- measure and display voltage (0-90v), current (0-100a), power, battery capacity, amp-hour, watt-hour and time simultaneously.
- Bidirectional ammeter --- the multimeter can detect current in dual direction without changing the wiring direction when used for monitoring charging and discharging.
- Other features --- lcd color display; ah power off memorized function; time & ah resettable; calibration function; automatically/manually switch off lcd screen; with output control button to enable/disable output (requires a relay).
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Product Highlights
- Application --- automotive audio video system, boat, truck, marine and dc sound amplifier system overload protection.
- Manual reset arm --- with manual reset button, can act as a master disconnect for circuits, can be used as a kill switch.
- Parameter --- max current 50a; voltage dc 24v.
- Purpose --- stop power surge from damaging the device, protect the trolling motor from electrical damage.
- Connection way --- any side for positive, the other is negative.
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Product Highlights
- The waterproof car power regulator can convert dc 12v/24v down to dc 5v 9v 12v; with max 95 percent conversion efficiency.
- Protective function: drok step-down power converter is designed with over current protection, short circuit protection, over voltage protection, reverse connection protection, over temperature protection.
- Drok dc dc converter input voltage is 12v/24v, output voltage range is 3.7-12v, max output current is 4.2a.
- Features: the buck voltage regualtor is waterproof, dustproof, moistureproof, shockproof, can be applied to harsh working environment.
- Application: drok volt transformer supports quick charger qc 3.0, qc 2.0 (3.6-6.5v 3a,6.5-9v 2a, 9-12v 1.5a) huawei haisi fast charge fcp; supports apple devices iphone ipad; supports samsung devices.
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Product Highlights
- Application --- 12v to 5v step down converter. can be used for car audio, led display; motor, speaker; auto gps navigator; car dvd; hard disk player; mp3, mp4; electric fan; toy cars; air conditioning; solar energy, etc.
- Conversion efficiency --- over 95% max.
- Parameter --- input voltage dc 6.3v-22v (12v 9v); output voltage dc 5v; output current 3a; output power 15w.
- Protection --- over-current protection; over-temp protection; input reverse connection protection; short-circuit protection; waterproof; dust-proof; moisture-proof; shock-proof.
- Feature --- high conversion efficiency, low heat generation; aluminum case, good heat dissipation, high safety.
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