Converting from W to W/m^2 for UV bulbs

[Leigh]

I have a 300 W UV bulb (http://www.bulborama.com/300R-E27-ULTRA-VITALUX-OSRAM-SUN-LAMP-TANNING-BULB-230-VOLTS-300-WATTS-p711.html).

I am trying to determine the W/m² without buying a $3k radiometer.

I will be using this bulb to irradiate cells during a protection experiment.

Thank you very much for your help!

 

[jsgruszynski]

I have a 300 W UV bulb (http://www.bulborama.com/300R-E27-ULTRA-VITALUX-OSRAM-SUN-LAMP-TANNING-BULB-230-VOLTS-300-WATTS-p711.html).

I am trying to determine the W/m² without buying a $3k radiometer.

I will be using this bulb to irradiate cells during a protection experiment.

Thank you very much for your help!

You can get an upper bound by simply calculating the emitting surface area of the bulb and dividing into the power. And hopefully the limitations of this are obvious: the conversion efficiency is not 100% so the actual number must be lower than this number. Possibly a lot lower.

The best answer is to call up Osram and ask them for the spec. Or scour their website for a detailed data sheet which likely has the spec or something from which it could be derived. Cost of a phone call or two with some of your time.

 

[jsgruszynski]

BTW:

OSRAM SYLVANIA INC.
100 Endicott Street Danvers, MA 01923 Phone: +1-978-777-1900 www.sylvania.com