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solarmeter® · 3rd January 2008, 10:14 AM

I think existing beds are grandfathered from the 0.3 rule... no?

Anyway... for 9 minutes to 4 MEDs (800 J/m² in EU) - you would need lamps "way" up over 1.4 W/m² Eeff (Ery).

The weak 0.3 x 9min x 60sec/min = only 162 J/m². If EU "allows" 800 J/m² max session time... it would take 2667 seconds or 44.4 minutes!!!!

See the little 0.30 W/m² reading on this Model 7.5 meter:

It would need to read a "whopping" 1.48 W/m² for 9 min (540 sec) to 800 J/m² Eeff.

The formula is W/m² x Sec = J/m² in case you want to do your own math.

3rd January 2008, 10:14 AM	#22 (permalink)
solarmeter® UV Geek Squad Join Date: Nov 2004 Location: Lake St Clair Posts: 3,371	Re: need advice I think existing beds are grandfathered from the 0.3 rule... no? Anyway... for 9 minutes to 4 MEDs (800 J/m² in EU) - you would need lamps "way" up over 1.4 W/m² Eeff (Ery). The weak 0.3 x 9min x 60sec/min = only 162 J/m². If EU "allows" 800 J/m² max session time... it would take 2667 seconds or 44.4 minutes!!!! See the little 0.30 W/m² reading on this Model 7.5 meter: It would need to read a "whopping" 1.48 W/m² for 9 min (540 sec) to 800 J/m² Eeff. The formula is W/m² x Sec = J/m² in case you want to do your own math. __________________ ......................Flashback 2001........................ "One of the 'ORIGINAL' TanToday Gang"