What size fuse should be used on the input side?

The input at 12v would be 24amps since the output is 288 watts at 48v. Also that raises some concern because the input wires are 16awg, which is rated to handle only about 10amps at 12v. This is not to US wiring standard and could potentially cause a fire. When I asked the seller about this they simply answered "yes, it is ok" with zero explanation as to why. But the facts are it isn't technically safe with those specs. That input wire should be at least 8-10awg if using a 30amp fuse.

So will this go both ways? 12v to 48v up or 48v to 12v down?

No, it is 12v to 48v dc step up converter

Will the output be regulated, that is limited to 3a, 14 watts, regardless of the load? and with no damage to the buc?

Yes, this 12v to 48v converter will automatically adjust the current and power required by the device at the output, provided that the voltage of your device is 6-16v.

I am looking to convert a 18V 5 amp hr RYOBI one plus drill battery to a 12V lighting for an EBIKE is this suitable for this and which one do I need?

Please check the model of 24V TO 12V 10A 120W Step Down,here is the ASIN: B0963J2YBD

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12V to 48V Boost Converter 12 Volt to 48V 288W 6A | Step Up Converter Voltage Regulator for Golf Carts, Club Car, Solar System, RV, LED Lights

12V to 48V Boost Converter 12 Volt to 48V 288W 6A | Step Up Converter Voltage Regulator for Golf Carts, Club Car, Solar System, RV, LED Lights

Product ID: 481273339

Details

Brand
EAGWELL
Color
Silver
Input Voltage
12
Item Weight
10.56 ounces
Output Voltage
48

⚡288W high power output

🔋12V to 48V step-up conversion

🛡️Full multi-protection smart chip

$70.14

Duties & taxes included

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Elevate your power game — convert smarter, run stronger!

SMART SAFETY FIRST - Integrated smart chip guards against over/under voltage, overload, and short circuits.
POWER YOUR AMBITION - 288W output powers golf carts, solar setups, and more with ease.
BOOST WITH PRECISION - Seamless 12V to 48V step-up conversion ensures stable, efficient voltage regulation.
CUTTING EDGE CRAFTSMANSHIP - Advanced SMT process with FR-4 multilayer PCB for unmatched reliability and stability.
BUILT TO BRAVE THE ELEMENTS - Durable aluminum shell with silicone sealing for harsh environment resilience.

The EAGWELL 12V to 48V Boost Converter delivers a robust 288W output at 6A with up to 97% efficiency, transforming 12V DC input into stable 48V DC output. Engineered with a durable aluminum shell and advanced SMT technology, it offers comprehensive protection via smart chips against voltage fluctuations and surges. Ideal for golf carts, solar systems, RVs, LED lighting, and more, this converter ensures reliable, high-performance power conversion in demanding environments.

Specifications

ASIN	B0B7WZGCM3
Best Sellers Rank	#89,833 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #336 in Power Converters
Brand	EAGWELL
Color	Silver
Customer Reviews	4.3 4.3 out of 5 stars (146)
Input Voltage	12 volts_of_direct_current
Item Weight	10.56 ounces
Manufacturer	Eagwell
Mfr Part Number	I1600-AM
Model Number	11-16V to 48V 6A
Number of Items	1
Number of Packs	1
Output Voltage	48 volts_of_direct_current
Plug Type	2.1mm center positive barrel jack
Power Source	DC DC Converter
Unit Count	1 Count
Warranty Description	1 Year Manufacturer

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