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Reliable 300W Outdoor Power Adapter - 12V DC, 25 Amp Rainproof

Power larger and more impactful LED outdoor advertising displays with this Reliable 300W Outdoor Power Adapter. Delivering a robust 12V DC output at a substantial 25 Amps, this unit provides the necessary energy for brighter signs, extensive LED runs, and more complex lighting installations. Its core advantage is the Rainproof enclosure, meticulously designed to protect against the elements, ensuring your valuable signage remains brilliantly lit regardless of weather conditions.

Specifically engineered for the demands of the outdoor illumination market, this 300W adapter bridges the gap for projects exceeding the capacity of standard units. Trust it to reliably drive sizable channel letters, large illuminated sign cabinets, or significant lengths of high-intensity LED strips commonly used in impactful advertising and architectural lighting. Choose this dependable 25 Amp solution for consistent performance and peace of mind in your demanding outdoor LED applications.

Model Number MJ-300-12RP
Input voltage 200-240V
Output voltage 12V DC
Output Power 300W
Size 182*100*56mm
Warranty 2 years
OEM Customize LOGO, color box, and Carton
Protection Over voltage, over current, short protection

description

model list

application

Feature

◎ Substantial 300W Output (25A): Delivers significant power capacity, ideal for energizing larger outdoor LED signs, extensive light strips, or multiple high-draw advertising elements.

◎ Dedicated Rainproof Housing: Engineered specifically for outdoor exposure, providing robust protection against rain and moisture to ensure reliable operation of signage.

◎ Strong 25 Amp Current Drive: Provides the high current necessary for intensely bright or densely packed LED modules often used in impactful advertising displays.

◎ Active Cooling System (Fan): Typically incorporates an internal fan to effectively manage heat under heavy loads, crucial for maintaining stability and longevity in demanding 300W applications.

◎ Consistent 12V DC Voltage: Ensures stable voltage delivery across the load, vital for uniform brightness and preventing damage to sensitive LED components in large installations.

specification

Model		MJ-300W 12V	MJ-300W 24V
OUTPUT	DC voltage	12V	24V
	Rated current	25A	12.5A
	Cuttent range	0-25A	0-12.5A
	Rated output power	300W	300W
	Ripples and noise	≤200mVp-p	≤300mVp-p
	Output current range	11.5-12.5V	23-25V
	Precision of output voltage regulation	±0.5%	±0.5%
	Rate of lenear adjustment	±0.5%	±0.5%
	Load adjustment rate	±0.5%	±0.5%
	The startup time	≤2s/230VAC
INPUT	Keep time	10ms/230VAC
	Voltage range	176-264VAC
	Frequency range	50Hz
	Power factor	PF≥0.6/230VAC
	Efficiency	≥89%	≥91%
	Alternating current	3.4A/230VAC
	Surge current	50A/230VAC
	Leakage current	<5mA/230VAC
PROTECTION	Overload	110%-140%: rated 110%-140% of the total power input
	Overload	protection mode:Auto recovery mode.the system automatically recovers when abnormal load conditions are removed
	Short circuit	protection mode:Auto recovery mode.the system automatically recovers when abnormal load conditions are removed
	Over voltage	protection mode:self-recovery mode,automatic recovery when the overvoltage is removed
	Over temperature	protection mode:self-recovery mode,automatically recover when the temperature drops
ENVIRONMEN		working temperature	-35~+50°C
		working humidity	20-90% RH
		storage temperature;humidity	-30~+85°C； 10~95% RH
		temperature coefficient	±0.1%/°C(0-35°C)
		resistance to vibration	10-500Hz, 3G 10min. / 1 cycle, 60 min. each axes
SAFETY&EMC		safety norms	EN60950 , GB4943.1 -2011
		withstand voltage	l/P-O/P:1.5KVAC l/P-FG:1.5KVAC O/P-FG:0.5KVAC
		insulation impedance	l/P-O/P, l/P-FG, 0/P-FG:100M Ohms / 500VDC / 25°C/ 70% RH
		EMC	--
other		protection grade	IP62
		MTBF	≥30khour 25℃
		power supply size	L182W100H56mm
		power supply weight	450g
NOTE		1.Unless otherwise specified , all specification are measured at an input of 230VAC,rarted negative cut,and ambient temperature of 25°C
		2.Ripple and noise measurement method:the measured end is connected in parallel with a 0.1uF+10uF capacitor,the oscilloscope is set to 20MHZ bandwidth,and the probe is tested with cap off and full load at 25°C
		3.Accuracy :includes setting error , linear adjustment rate and load adjustment rate .
		4. The output power is reduced when the input voltage is less than 200VAC.

Caution

● The product MUST be installed vertically and the wiring terminals downwards.

● For the heat dissipation, distance of 10cm from 4 sides (up/down/right/left) and 5cm from the ventilation hole side should be kept.

OEM Customer design

010203

Model List

Our factory offers OEM customization, allowing us to tailor various models and parameters to meet your specific needs. Feel free to contact us for more information and personalized solutions.

Model	Power Out	Input Voltage	Output Voltage	Output Current	Efficiency	IP	Size(mm)	Package
MJ-60W 12V	60W	200-240V AC	12V	5.0A	93%	IP62	1307642	100
MJ-100W 12V	100W	200-240V AC	12V	8.3A	93%	IP62	1487642	100
MJ-150W 12V	150W	200-240V AC	12V	12.5A	93%	IP62	1487642	100
MJ-200W 12V	200W	200-240V AC	12V	16.7A	92%	IP62	1957642	80
MJ-300W 12V	300W	200-240V AC	12V	25.0A	92%	IP62	18210050	50
MJ-400W 12V F	400W	200-240V AC	12V	33.3A	80%	IP62	18212056	40
MJ-400W 12V C	400W	200-240V AC	12V	33.3A	92%	IP62	18212056	40
MJ-400W 12V A	400W	200-240V AC	12V	33.3A	92%	IP62	20512056	30
MJ-500W 12V	500W	200-240V AC	12V	41.7A	90%	IP62	20512056	30
MJ-600W 12V	600W	200-240V AC	12V	50.0A	90%	IP62	20512056	30
MJ-700W 12V	700W	200-240V AC	12V	58.3A	90%	IP62	22012056	30
MJ-1000W 12V	1000W	200-240V AC	12V	83.3A	90%	IP62	22012056	30
MJ-400W 24V	400W	200-240V AC	24V	16.7A	93%	IP62	18212056	40
MJ-700W 24V	700W	200-240V AC	24V	29.1A	91%	IP62	22012056	30
MJ-200W 5V	200W	200-240V AC	5V	40.0A	92%	IP62	18212056	40
MJ-300W 5V	300W	200-240V AC	5V	60.0A	92%	IP62	18212056	40
MJ-350W 5V	350W	200-240V AC	5V	70.0A	90%	IP62	20512056	30
MJ-400W 5V	400W	200-240V AC	5V	80.0A	90%	IP62	20512056	30
MJ-500W 5V	500W	200-240V AC	5V	100.0A	89%	IP62	22012056	30

application

This Reliable 300W Outdoor Power Adapter is engineered to meet the increased energy demands of more substantial LED outdoor advertising and illumination projects. Its high 25 Amp current capability makes it the go-to solution when standard power supplies fall short, perfectly suited for:

1. Large Illuminated Signage: Confidently powering sizable outdoor LED channel letters, bigger illuminated sign cabinets, or multi-panel displays that require significant wattage for bright, uniform visibility.

2. Extensive LED Strip Installations: Driving long, continuous runs of high-density or high-brightness 12V LED strips used for architectural outlining, large-scale cove lighting, or impactful decorative effects on building exteriors.

3. High-Intensity LED Modules: Providing the necessary current for densely packed or particularly bright LED modules often specified for premium outdoor advertising displays designed for maximum visual impact, even in daylight.

4. Multiple Medium-Sized Signs: Consolidating power for several standard outdoor signs or lighting fixtures from a single, robust, and weather-protected 300W source, simplifying installation.

5. Demanding Landscape Lighting: Suitable for landscape projects incorporating numerous powerful 12V fixtures or requiring long cable runs where voltage drop compensation necessitates higher starting power.

Choose this 300W, 25 Amp rainproof adapter when your outdoor LED project demands higher power capacity combined with dependable, weather-resistant performance.