Each of our carefully manufactured stators is further tested to international standards. We are passionate about creating the best possible replacement parts, and our 100% quality inspection of products during production guarantees a high-quality product.
Characteristics:
- High quality and durability
- Manufactured to provide excellent light output and long life
- High luminous flux
- Constant luminous flux throughout the lamp’s lifespan
- Up to three times the lifespan (compared to standard lamps)
- Elegant Design
- Without irritating color effects
- Optimized filament design
- CCT approved
- Vibration resistant
- Original spare parts
- Halogen lamps: main components

- Raw Material
- Manufacturing
- Evidence
Our superior quality is due to our SGS-approved factories, where products achieve perfection using countless quality parameters. We use a minimal BOP (buyer's parts) to maintain complete quality control.
| Parameter | Details | Elpra | Chinese Product | Advantages of Elpra |
|---|---|---|---|---|
| BOP | Base | Outsourced | Outsourced | Since these parts require large infrastructure. All the OEM's also buy these parts from outsourced factory. |
| Winding | 0.8 MM Copper | 0.75 MM Copper | Required current generation | |
| Filament | In-house | Outsourced | Ensure quality standardization | |
| Raw material | Glass | Quartz | Normal quality glass | Better lumen depreciation |
| Filament | Tungsten | Substandard tungsten | High longevity and maximum light. | |
| Inside Gas | Xenon | Neon | High longevity and more lumen | |
| Lead in wire | High grade of Copper | Substandard copper | High grade copper/appropriate length ensure no leakage | |
| Base | Steel/Iron | Iron | Material as per customer requirement |


Our manufacturing facilities give us the advantage over other Chinese products. With a fully automated line requiring minimal manual intervention, we are the leading lamp manufacturers.
| Parameter | Details | Elpra | Chinese Product | Advantages of Elpra |
|---|---|---|---|---|
| Manufacturing process | Cut from glass | Internal process | outsourced process | High-quality cutting to prevent chipping. This ensures a long lifespan. |
| Housing manufacturing | Internal process | outsourced process | In-house manufacturing ensures better quality control of the parts produced. | |
| Bulb sealing | Internal process | outsourced process | In-house manufacturing ensures better quality control of the parts produced. | |
| Anti-glare coating | Internal process with automatic coating machine | With or without anti-glare coating | A higher quality anti-glare coating ensures correct light focusing. | |
| Gas filling | Internal process | Internal process | In-house manufacturing guarantees a m | |
| Glare Coating | Internal process | outsourced process | Better quality glare coating ensures proper light focus. | |
| Gas filling | Internal process | outsourced process | In-house manufacturing guarantees a m |
Each of our meticulously crafted lamps is tested in our in-house quality control laboratories, which are equipped with internationally recognized testing equipment, including humidity and life tests. In addition to internal controls, we also conduct timely bulb quality tests through external agents. This results in zero defects and ensures our lamps are of the highest quality. We perform 100% inspection of raw materials before processing on the production floor, and the same level of rigorous control is maintained throughout production. Every lamp is tested by our engineers before final packaging.
Photometry
The photometric globe is used to verify all the electrical parameters of the lamp, such as voltage, watts, current, lumens, and color temperature (CCT).
| Parameter | Details | Elpra | Chinese Product | Advantages of Elpra |
|---|---|---|---|---|
| Testing Standard | Photometry | Electrical parameter testing | No in-house testing, since photometric globe is an expensive equipment | To check the parameters like lumen, wattage, voltage and current ensuring product quality |
| Photometry test report | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Test details: | Photometry | Sample type | Complete lamp | Production date | 20.12.2017 | ||||||||
| Specification: | H4 12V 35/35W P43T | Manufacturer: | Eastman | Test date | 20.12.2017 | ||||||||
| Beam Type: | (High Beam) | (Low Beam) | |||||||||||
| Parameter | Test Volt (V | Current (A) | Watts (W) | Lumen (Lm) | Lm/W | Color Temp. (K) | Life (Hrs.) | Current (A) | Wattage (W) | Lumen (Lm) | Lm/W | Color Temp. (K) | Life (Hrs.) |
| Standard: | 13.2 | – | 33.2~36.8 | 825 (702~948) | – | – | 130 | – | 33.2~36.8 | 525 (447~603) | – | – | 150 |
| Sample 1 | 13.2 | 2,764 | 36.5 | 788 | 21.60 | 3199 | 256 | 2,776 | 36.6 | 497 | 13.56 | 3137 | – |
| Sample 2 | 13.2 | 2,749 | 36.3 | 775 | 21.36 | 3213 | 278 | 2,759 | 36.4 | 485 | 13.32 | 3114 | – |
| Sample 3 | 13.2 | 2,712 | 35.8 | 763 | 21.31 | 3253 | 296 | 2,766 | 36.5 | 495 | 13.56 | 3152 | – |
| Sample 4 | 13.2 | 2,725 | 36.0 | 754 | 20.96 | 3231 | – | 2,772 | 36.6 | 489 | 13.36 | 3151 | 289 |
| Sample 5 | 13.2 | 2,732 | 36.1 | 766 | 21.24 | 3212 | – | 2,773 | 36.6 | 484 | 13.22 | 3159 | 302 |
| Average: | 13.2 | 2.74 | 36.1 | 769.2 | 21.3 | 3221.6 | 276.7 | 2.77 | 36.6 | 490.0 | 13.4 | 3142.6 | 295.5 |
| Conclusion: | Passed | ||||||||||||
| Verified By: | QA Head: | ||||||||||||
Luminous flux Φ
Unit: Lumen [lm]
Luminous flux is the term used to represent the amount of light energy emitted per second in all directions.
Light output ŋ
Unit: Lumen per watt (lm/W)
The amount of light falling on a surface is measured in lux. One lux is the light obtained from a light source of one lumen on an area of one square meter.
Color temperature:
Color temperature is measured in Kelvin, which indicates the color of a specific type of light source. (Kelvin is indicated by the unit symbol K.) Color temperatures above 4000 K are called cool whites, while lower color temperatures (2700–3000 K) are called warm whites (yellowish whites). The higher the temperature of a light source, the greater the proportion of blue and the smaller the proportion of red in the color spectrum.

Life test
| Item | Parameter | Details | Elpra | Chinese Product | Advantages of Elpra |
|---|---|---|---|---|---|
| 1 | Testing standards | Life test | Internal process | Without proof of useful life, as it requires infrastructure to manage |
Standard life up to 150 hours |
All lamps are tested on the lifetime test rack for an extended period to verify the
switching cycle and lamp life expectancy.
Vibration and shock test
| Item | Parameter | Details | Elpra | Chinese Product | Advantages of Elpra |
|---|---|---|---|---|---|
| 1 | Testing standards | Vibration test | Vibration resistant | Without evidence | Longer lifespan |
Bulbs are tested on random basis to check the filament strength and vibration resistance of the filament. This test ensures the life expectancy of the bulb.
| Item | Parameter | Details | Elpra | Chinese Product | ElpraAdvantages |
|---|---|---|---|---|---|
| 1 | Testing standards | Arrival of parts | Inspection and testing of 100% of the parts received | Without evidence | This ensures that incoming parts are within the tolerance limit according to AQL |
| In progress | 100% quality control in different processes | Without quality control, as it requires additional labor/additional cost | Defect-free product | ||
| Final inspection | All lamps are checked before shipping to ensure good quality. | Without quality control, as it requires additional labor/additional cost | Defect-free product |

