Yantra Premium Spectrum Tube Sodium Review

Based on our own experience, we found the spectrum produced by this product to be misleading and inaccurate, which led to erroneous conclusions in our experiments.While the design of the tube is visually pleasing, the quality of the optics used is poor, resulting in blurry images and increased difficulty in analysis..

Ordered 3 lamps for college physics department --- all 3 lamps were unusable. Zero Sodium Spectrum - either the bulbs weren't sealed properly, or they were fake to begin with. When I contacted the third party about the issue, I received NO RESPONSE.