The line light transformer is a step down transformer. Since the “driving” in the factory is a metal frame, if workers use high-voltage lights when driving, the leakage is easy to cause casualties. Therefore, the safe voltage of 36V and below is used as lighting power. The “lighting transformer” is a transformer that converts 220Vor 380VAC power through a transformer into a safe voltage of 36v and below for localillumination.
At present, the “lighting transformer” has single-phase and three-phase, and is generally converted into 12V, 24V, 36V, etc., mainly used for low-voltage power supply.
The transformer works reliably under the following conditions
● The altitude does not exceed 2500m;
● Ambient air temperature: no more than 40 ° C, the lowest is not lower than -25 ° C;
● Relative humidity of air: The average maximum relative humidity of the wettest month is 90%;
● places without severe vibration and impulsivity;
● In a medium without explosion hazard, and there is no place in the medium that is sufficient to corrode metals and destroy insulating gases and conductive dust.
● Locations that are not affected by rain or snow.
The JMB series step-down transformers are designed with high-quality workmanship and materials to ensure a high performance, reliability, and durable life expectancy in industrial and commercial applications. Herein discussion of their key features and advantages are highlighted:
The JMB series step-down transformers are of the highest quality, with strictly selected materials discarding the usage of inferior components. This means longer service life and more stability of operation.
The terminal connectors have legible power ratings for convenience in external wiring. This will make for convenient plug-and-play applications since connecting and disconnection is much faster and more efficient.
High-quality Imported Silicon Steel Laminations
Imported silicon steel laminations applied to the transformers boast excellent electromagnetic performances. The laminations will be very important for assuring stable and efficient performances; therefore, they are indispensable in industries of power, telecommunications, and instrumentation.
Multi-sided Heat Dissipation Grilles
Multi-sided dissipation grills fitted on the JMB step-down transformers are for efficient heat reduction during operation. It prolongs the life span of the transformer by maintaining optimum temperature levels instead of overheating it.
Product analysis

① Portable Carrying Handle
② Conductive terminal
③ Metal case
④ Cooling grille

| Product model | Primary voltage | Secondary voltage | size(mm)xx L x W x H |
| JMB 50-100VA | 120*200*115 | ||
| JMB-200VA | 220V 380V Available upon request | 6.3、12、14、36、110、127、220、380 or Available upon request | 150*130*130 |
| JMB-300VA | 170*150*150 | ||
| JMB-500VA | 200*175*170 | ||
| JMB-1KVA | 230*210*180 | ||
| JMB-2KVA | 265*250*220 | ||
| JMB-3KVA | 300*250*230 | ||
| JMB-5KVA | 355*290*280 | ||
| JMB-10KVA | 400*320*320 |
| Brand | ZHENGXI |
| Model | JMB series |
| Input Voltage | Customized various voltages (voltage below 1500v) according to user requirements Such as: 110, 220, 360, 380, 400v, 415, 440, 660, etc. |
| Output Voltage | Customized various voltages (voltage below 1500v) according to user requirements Such as: 6, 12, 24, 36, 48, 110, 200, 220, 380, 415, 660,690, 1140v, etc. |
| Work Efficiency | ≥98% |
| Frequency | 50HZ/60HZ |
| Overload Protection | No additional waveform distortion |
| Electrical Strength | Power frequency sinusoidal voltage 2000v for 1 minute without breakdown and flicker |
| Waveform Distortion | Double rated current can last for 1 minute |
| Ambient Temperature | The average temperature is lower than 35 ℃ in 24h |
| Relative Humidity | ≤90% |
| Insulation Resistance | ≥10MΩ |
| Insulation Class | Class F, Class H, and HC are available (normally Class F) |
| Temperature Rise | ≤60℃ |
| Variable Output | 220V、380V6V、12V、24V、36V |
| Cooling Method | Self-cooling |
| Cooling Form | Dry |
| Iron Form | Core |
| Moisture Proof Method | Open |
| Altitude | 1000m |
The right options for a wide range of voltage reduction applications in industries looking for consistent and reliable performance, the JMB series step-down transformers combine efficiency, durability, and precision.