Cluster Profile
| 1 | Name Of Cluster | G L S lamp cluster |
| 2 | Place | Patna |
| 3 | District | Patna |
| 4 | State | Bihar |
| 5 | No of firms (by type) | 70 |
| 6 | No. of workers | 4900 |
| 7 | Turnover(Rs in Million's) | 350 million |
| 8 | Associations in cluster | NA |
| 9 | Major products | Bulb , Auto Bulb , Miniature Bulb |
| 10 | Specific and relevant technical institutions (R&D, Testing Lab accredited) |
NA |
| 11 | Major markets | Nepal Bhutan Bihar |
| 12 | Major problems/prospects | Range of products and product design Process of manufacturing Testing, inspection and quality control Skill of workers Modernizing inputs |
| 13 | Data source and updated on | DSR by Micro Small and Medium Enterprises + Development Institute |