Can I put two of these in parallel to get 720 watts?

Not a good idea to simply connect in parallel. However, if you hook each one to a 1 ohm ceramic resistor each, then connect them together. The issue is that each one will want to be at a slightly different voltage and they’ll fight each other. You need to buffer that difference with a resistor on each of them.

Large spark when conncting 72v battery normal?

Yes, it is normal to get a rather unnerving spark when connecting the converter to the battery.

What in the input amperage required?

That would depend on the AMP draw of the output, and the voltage of the input. You can probably find a good calculator by googling.

what is the exact output voltage and can it be adjusted?

The exact voltage is 12,4V and don’t have no ajustement

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Cllena DC 40V-90V to 12V Converter Voltage Regulator Reducer 48V 60V 72V Step Down to 12V 20A 240W Converter Waterproof Buck Transformer Power Supply for Golf Cart Club Car LED Light

Cllena DC 40V-90V to 12V Converter Voltage Regulator Reducer 48V 60V 72V Step Down to 12V 20A 240W Converter Waterproof Buck Transformer Power Supply for Golf Cart Club Car LED Light

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Product ID: 362153079

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Brand
Cllena
Color
Grey
Input Voltage
40 Volts
Output Voltage
12 Volts
Total Power Outlets
1

⚡40V-90V input range

💧IP68 waterproof & dustproof

🔋12V 20A stable output

Description

🔌 Power your gear with precision and confidence — never settle for less!

SMART SAFETY SHIELD - Comprehensive protections against overload, over-current, over-temperature, short-circuit, and over-voltage keep your devices safe.
POWERHOUSE EFFICIENCY - Up to 95% conversion efficiency means less energy wasted and more power delivered.
PLUG PLAY VERSATILITY - Seamlessly steps down 40V-90V DC to a steady 12V output, perfect for golf carts, LED lighting, and more.
ENGINEERED FOR LONGEVITY - Robust design with a lifespan of up to 100,000 hours backed by CE/RoHS certification and 1-year warranty.
BUILT TO BRAVE THE ELEMENTS - IP68-rated aluminum shell ensures waterproof, anti-shock, and dustproof durability for any environment.

The Cllena DC 40V-90V to 12V 20A Converter is a high-efficiency, waterproof voltage regulator designed to step down a wide DC input range to a stable 12V output at 20A and 240W. Featuring an IP68-rated aluminum casing, advanced synchronization rectification technology, and multiple intelligent protections, it ensures reliable, safe, and durable power supply for golf carts, LED lighting, and various electronic systems. Certified with CE/RoHS and built to last up to 100,000 hours, this converter is engineered for professional-grade performance in demanding environments.

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TrustScore 4.5 | 7,300+ reviews

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Manufacturer	Cllena
Brand	Cllena
Item Weight	1.12 pounds
Package Dimensions	5.43 x 3.82 x 1.69 inches
Item model number	Cllena DC40V90V-12V20A
Manufacturer Part Number	DC7212-20

Cllena DC 40V-90V to 12V Converter Voltage Regulator Reducer 48V 60V 72V Step Down to 12V 20A 240W Converter Waterproof Buck Transformer Power Supply for Golf Cart Club Car LED Light

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