NPL has completed work with Hyperion Lighting to validate the performance of their energy-efficient fluorescent lamps. The HT8 lamp is designed to replace the common T8 commercial fluorescent lamp without expensive modification to existing installations or wiring.

NPL tested the HT8 using unique facilities such as the NPL Goniospectroradiometer that can measure the spatial distribution of light and its spectral composition, which gives light its colour characteristics. Measurements of total light intensity, spatial and spectral characteristics, as well as the energy use of the lamps, were carried out in order to build up a full picture of the HT8's performance.

The Hyperion Lighting HT8 fluorescent lamp provides
the same light quality as a conventional T8 lamp,
while using half the energy

All the test data was provided in the industry-standard photometric data format, so that it can be used in lighting design software packages, and assistance was given to Hyperion Lighting in interpreting the data.

The results demonstrated that the HT8 meets the performance target of generating the same amount of light as the traditional T8 lamp while using only half as much energy. The colour of the light generated was also similar to that of the conventional T8 lamp, meaning that there should be no difference in user preference between the two.

Dickson Cheung, Managing Director of Hyperion Lighting, said: "The NPL consultant was able to provide expert guidance in assessing and interpreting the test data and we are now confident that the new design has met the desired performance without compromising on light delivery or quality."

Hyperion Lighting can now market the energy-efficient lamp using the performance data supplied by NPL, and its customers can benefit from lower energy usage, energy bills and a reduced carbon footprint, without any reduction in light quality.

See the full case study here

More on NPL's work for the lighting industry

For more information, please contact Paul Miller