Great British Koi Show - 27th & 28th August @ Newark Showground

North of England Koi Show - 13th & 14th August @ Sunderland 

We are open 7 days a week.  9am to 5pm Monday to Friday and 10am until 3pm weekends.  (Bank Holidays vary)

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View as Grid List

10 Items

per page

Quartz Sleeves

Quartz is extremely transparent over a wide spectral range, with a low coefficient of thermal expansion and quartz is resistant to scratching and thermal shock. Fused quartz is made form crushing and melting natural materials. The purity of quartz is paramount to the efficiency of the lamp and sleeve.  Greater ultraviolet transmission, low coefficient of thermal expansion
Increased hardness and resistance to scratching.  Higher resistance to solarisation or darkening from ultraviolet radiation.