ACTIVITY
NEWNESS
NEW - Reflekta
Build-in modules
PRO Line for Juwel
SPECIAL OFFER
Tubes and reflectors
DELIVERY
Price list
DELIVERY
INFORMATION
TESTS
FAQ
QUESTIONNAIRE

 

Influence of materials on lighting unit's effiency


One of the most important items of directed illuminant is a reflecting body which essentially influences on a final effiency. By this illuminant  the received light output from the tube is between 25-35%. The rest of 65-75% is therefore received from  reflected  body respectively reflector. If the reflector is made of unsuitable material or it has irregular shape there will be substantial losses shown as excessive heat.

 

The  lower test demonstrates the influence of reflective material at HQI lighting unit. 

The lighting unit HQI 2x150W was tested under identical conditions. The only difference was in a reflecting body. At first in HQI 2x150W was original reflector made of anodised aluminium sheet Picture 1, Graph 1). Then in HQI 2x150W a highly reflective metal sheet with 95% reflection was placed (Picture 2, Graph2). Efficiency was inreased for 30%.


 

 

  Anodised aluminium sheet:

hqi_bc.jpg

 

  HQI BC EN.jpg

 

 

 

  Highly reflective metal sheet:

hqi_ac.jpg


HQI AC EN.jpg