Single ended quartz metal halide lamps with a tubular outer envelope Both internal and external ignitor versions available All versions operate on a standard mercury ballast, with or without (/I type) external ignitor Very high light output with outstanding colour properties Suitable for colour television filming in sports stadia and large arena Industrial lighting applications in exterior car parks, rail and dock yards
I gave it less than the maximum because the lamp I ordered with the fitting was defective. After I rang them about it, they sent me another one of a different make. Also, if this fitting is being installed by a DIY person, the information that comes with it says nothing about connecting the fitting to the supply. The terminal block is not marked L and N and it is easy to get the polarity wrong with possible catastrophic results.