Filament lamps with tungsten are widely used for household lighting purposes and other general lighting purposes. Such lighting makes use of the principle that produces light through the heating up of the tungsten filament. These lamps are commonly found in homes or small commercial spaces. Though new technology exists, these lamps are still used in certain cases where the conventional method is more appropriate.
Certification by BIS helps the filament lamps meet strict requirements when it comes to quality and safety. According to IS 418: 2004, all specifications related to the performance, testing methods, and durability are provided so that the lamps can be used safely. It is mandatory to conduct the testing of electrical properties, life performance, and safety parameters. Companies producing filament lamps must have a BIS license to market the product in India.
What is IS 418: 2004?
This is the Indian Standard for tungsten filament lamps used for domestic and similar general lighting purposes. It mentions the safety and performance criteria for the filament lamps. As per the BIS (Bureau of Indian Standards), lamps are:
- Assessed for safety against thermal hazards
- Tested for lumen output
- Checked for cap dimensions
- Evaluated for filament strength
Eligibility for Domestic Tungsten Lamps BIS License
BIS authorisation under IS 418: 2004 is required for businesses involved in manufacturing, importing, or supplying Filament Lamps for General Lighting in India.
Applicable to:
- Manufacturers (India) - Must get BIS approval if the Light Bulbs are covered under QCO.
- Foreign Manufacturers - Need certification to export Tungsten Bulbs to India.
- Importers/Brand Owners - Must ensure that the products are BIS-certified before sale.
- Sellers/Distributors - Should only sell certified Filament Lamps for General Lighting.
Testing and Inspection Requirements
To ensure the safe and reliable lighting in households, the Bureau of Indian Standards outlines the minimum requirements under IS 418: 2004. This certification ensures that manufacturers meet the requirements for tungsten filament lamps used in domestic and similar general lighting applications. The BIS testing parameters and quality checks for the lamps are listed below:
| Test Group | What is Tested | Purpose |
|---|
| Lamp Dimensions Tests | Physical dimensions and cap fit of the lamp | Ensures interchangeability and proper fitting in holders |
| Wattage & Electrical Performance Tests | Rated wattage and electrical operating characteristics | Ensures correct power consumption and compliance with specification |
| Luminous Flux Tests | Initial light output and brightness performance | Ensures adequate illumination and rated performance |
| Insulation Resistance Tests | Resistance between live parts and external surfaces | Ensures protection against electric leakage and shock |
| Electric Strength (Dielectric) Tests | Ability to withstand high voltage without breakdown | Ensures electrical safety under stress conditions |
| Protection Against Accidental Contact Tests | Safety against touching live parts in lamp holders | Ensures user protection from electric shock |
| Interchangeability Tests | Compatibility with standard lamp holders | Ensures universal fitting and usability |
| Torque Resistance Tests | Resistance of lamp cap to twisting forces | Ensures secure installation and prevents loosening |
| Thermal Performance Tests | Cap temperature rise and heat generation | Ensures safe operating temperature limits |
| Life & Endurance Tests | Lamp life, lumen maintenance, and continuous operation | Ensures long-term performance and reliability |
| Filament Quality Tests | Filament strength, uniformity, and stability | Ensures consistent light output and durability |
Steps to get BIS Approval for Filament Lamps
The BIS Authorisation process ensures that the General Lighting Incandescent Lamps meets the required standards for proper and efficient operation. This process is set by the Bureau of Indian Standards (BIS) and includes the following steps:
- Online Registration: Manufacturers register on the BIS Manak portal by submitting company, factory, and product details. Foreign manufacturers must appoint an Authorized Indian Representative (AIR).
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories for filament integrity, voltage performance, and electrical safety.
- Application Submission: The application is submitted along with test reports, technical documents, and factory details. Foreign manufacturers must also submit AIR-related documents.
- Factory Inspection: BIS officials inspect the manufacturing units to verify the production process, safety measures, and quality control system.
- Grant of BIS License: Upon successful verification of all requirements, BIS grants the certification license under Scheme-I.
- Use of ISI Mark: Once approved, the manufacturer is permitted to use the ISI mark on the product with a CM/L number, confirming that the product meets BIS standards.

Required Documents for IS 418: 2004 Approval
| Document Category | Documents Required |
|---|
| Basic Details | GST Certificate, Email ID & Contact Number, Factory & Office Address, Rent Agreement / Lease Deed (if applicable),Partnership Deed (if applicable for partnership firms) |
| Manufacturing Details | List of Machinery, Process Flow Chart, Factory Layout Plan |
| Raw Material Details | List of Raw Materials, Supplier Details, Raw Material Invoices, Raw Material Test Certificates |
| Testing & Quality Control | List of Testing Equipment, Calibration Certificates, QC/Lab In-charge Appointment Letter & Qualification |
| Production Details | Annual Installed Capacity, Last Year Production Value |
| Product & Packaging Details | Quantity per Package, Nature of Packing, Product Printing / Marking Details |
| Management Details | Top Management Details, BIS Communication Contact Person |
| Brand & Certification Documents | Trademark / Brand Certificate, Consent Letter from BIS Recognized Laboratory |
| Additional Documents | Weekly Off Details, Hygiene Document (if applicable), Relaxation Letter (if applicable), Any Other Relevant Document |
| Foreign Manufacturer Requirement | Appointment of Authorized Indian Representative (AIR) for BIS coordination and compliance in India |
The Foreign manufacturers are required to appoint an Authorized Indian Representative (AIR) in India. This person is the local point of contact for the Bureau of Indian Standards (BIS) and takes care of all rules and compliance work in India.
Marking Requirements & License Validity
Marking Requirements
Once a manufacturer obtains BIS approval, the ISI Mark for General Purpose Lamps must be clearly and permanently marked on its packaging or on the product. Along with the ISI Mark, certain details such as the manufacturer’s identification and licence number (CM/L) must be provided. This ensures the product complies with all safety standards. Further details are mentioned below:
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and conforms to standards |
| Standard Number | IS 418: 2004 |
| CML Number | Certification Marks License (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| Batch / Date | Batch number, heat number, or manufacturing date for traceability |
Note: Marking is typically applied using durable stamping, tagging, or permanent printing to ensure clear identification during handling, storage, and transportation, as per BIS marking requirements.
Electric Filament Lamps BIS License Validity
| particulars | Details |
|---|
| Validity | Typically 1 to 2 years, depending on BIS approval conditions |
| Renewal | Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents |
| Surveillane | Includes periodic factory inspections and market sample testing conducted by BIS |
| Compliance | Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory |
| Risk | Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license |
Filament Lamps for General Lighting BIS Approval Fees
The cost of BIS Approval for Filament Bulbs includes charges for application, inspection, license, testing, and marking. These fees are paid to BIS as per Scheme I guidelines.
| Charge Type | Indian Manufacturers | Foreign Manufacturers |
|---|
| Application Fee | INR 1,000 | USD 15 |
| Audit Charges | INR 7,000 | USD 3,200 – 5,900 |
| License Fee | INR 1,000 | USD 15 |
| Marking Fee | As applicable | As applicable |
| Testing Charges | As applicable | As applicable |
| EVTL India Consultancy Fee | As per actual | As per actual |
Note:
- Application fee for foreign manufacturers is payable via SWIFT (SAARC countries may pay in INR with applicable GST).
- Audit charges for foreign manufacturers vary based on country/location.
- The marking fee is determined based on the product category and production volume (MSME benefits may apply).
- Testing charges are paid directly to BIS-recognised laboratories.
- Consultancy fees vary depending on product type and factory location.
Conclusion
Certified tungsten filament lamps provide consistent lighting performance and safe operation for domestic use. Tungsten filament lamps that meet the standards outlined in IS 418: 2004 are going to reduce the hazards associated with electrical faults. The products assure an effective light source for domestic applications. Manufacturers meeting the standards enhance the product's reliability among Indian consumers. Meeting BIS requirements is important for ensuring regulatory approval and market acceptance in India. It confirms that the product meets national quality expectations. EVTL India supports manufacturers in the BIS certification process by offering guidance, documentation support, and assistance in achieving smooth compliance.