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100W 12V Rainproof Power Supply - Weatherproof Outdoor Adapter
Feature
◎ Dedicated Weatherproof Design (IP Rated): Robust enclosure specifically engineered to shield internal components from rain, dust, and humidity IP43, ensuring continuous operation and longevity for outdoor LED signs and displays in diverse climates.
◎ High Power & Stable 12V Output: Delivers a full 100 Watts (8.33 Amps) of regulated 12V DC power, providing ample energy for large or bright LED channel letters, light boxes, and modules, ensuring consistent brightness and preventing flicker for maximum visual impact.
◎ Rigorous Quality Assurance (100% Burn-in Tested): Every unit undergoes a stringent 2-hour, 100% full-load burn-in test before shipment, drastically minimizing failure rates (target <0.1%) and guaranteeing exceptional reliability for critical advertising installations.
◎ High Efficiency & Reliable Cooling: Optimized for energy efficiency to minimize power consumption and operational costs for always-on signage. Typically features a durable metal casing for effective passive heat dissipation, ensuring stable performance without noisy fans during long operating hours.
◎ Broad Compatibility & Easy Installation: Designed for straightforward integration with common 12V LED advertising systems. Often includes clearly marked input/output terminals and mounting holes for secure and convenient installation within sign enclosures or structures With BIS certificate.
specification
| Model | MJ-100W 12V | MJ-100W 24V | |
| OUTPUT | DC voltage | 12V | 24V |
| Rated current | 8.3A | 4.16A | |
| Cuttent range | 0-8.3A | 0-4.16A | |
| Rated output power | 100W | 100W | |
| 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 | |
| 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 | L148*W76*H46mm | ||
| power supply weight | 320g | ||
| 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 | 130*76*42 | 100 |
| MJ-100W 12V | 100W | 200-240V AC | 12V | 8.3A | 93% | IP62 | 148*76*42 | 100 |
| MJ-150W 12V | 150W | 200-240V AC | 12V | 12.5A | 93% | IP62 | 148*76*42 | 100 |
| MJ-200W 12V | 200W | 200-240V AC | 12V | 16.7A | 92% | IP62 | 195*76*42 | 80 |
| MJ-300W 12V | 300W | 200-240V AC | 12V | 25.0A | 92% | IP62 | 182*100*50 | 50 |
| MJ-400W 12V F | 400W | 200-240V AC | 12V | 33.3A | 80% | IP62 | 182*120*56 | 40 |
| MJ-400W 12V C | 400W | 200-240V AC | 12V | 33.3A | 92% | IP62 | 182*120*56 | 40 |
| MJ-400W 12V A | 400W | 200-240V AC | 12V | 33.3A | 92% | IP62 | 205*120*56 | 30 |
| MJ-500W 12V | 500W | 200-240V AC | 12V | 41.7A | 90% | IP62 | 205*120*56 | 30 |
| MJ-600W 12V | 600W | 200-240V AC | 12V | 50.0A | 90% | IP62 | 205*120*56 | 30 |
| MJ-700W 12V | 700W | 200-240V AC | 12V | 58.3A | 90% | IP62 | 220*120*56 | 30 |
| MJ-1000W 12V | 1000W | 200-240V AC | 12V | 83.3A | 90% | IP62 | 220*120*56 | 30 |
| MJ-400W 24V | 400W | 200-240V AC | 24V | 16.7A | 93% | IP62 | 182*120*56 | 40 |
| MJ-700W 24V | 700W | 200-240V AC | 24V | 29.1A | 91% | IP62 | 220*120*56 | 30 |
| MJ-200W 5V | 200W | 200-240V AC | 5V | 40.0A | 92% | IP62 | 182*120*56 | 40 |
| MJ-300W 5V | 300W | 200-240V AC | 5V | 60.0A | 92% | IP62 | 182*120*56 | 40 |
| MJ-350W 5V | 350W | 200-240V AC | 5V | 70.0A | 90% | IP62 | 205*120*56 | 30 |
| MJ-400W 5V | 400W | 200-240V AC | 5V | 80.0A | 90% | IP62 | 205*120*56 | 30 |
| MJ-500W 5V | 500W | 200-240V AC | 5V | 100.0A | 89% | IP62 | 220*120*56 | 30 |
application
This MJ 100W 12V Rainproof Power Supply is specifically engineered as the premier power solution for a diverse range of outdoor LED Advertising and Signage applications. Its robust weatherproof design and reliable 100W output make it exceptionally suitable for:
● LED Channel Letters & Logos: Providing consistent, bright power for illuminated storefront signs, business names, and corporate branding exposed to the elements.
● Outdoor LED Light Boxes: Energizing single or double-sided light boxes used for menus, posters, directories, and promotional displays in retail, restaurant, and public transit settings.
● Medium-Sized Digital LED Displays: Powering sections of smaller outdoor digital billboards or LED message boards requiring stable 12V DC input.
● Architectural & Accent Lighting: Driving 12V LED fixtures used to highlight building facades, structures, or landscapes as part of a commercial branding strategy.
● Illuminated Window Displays: Suitable for powering dynamic or static LED displays placed near windows but still requiring protection from potential moisture or condensation.
● Trade Show & Event Signage: Offering a durable power option for temporary outdoor event signs or displays that need to withstand various weather conditions.
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