More watts than driver is designed for?

stevemayman

Newly Enlightened
Joined
Jul 6, 2013
Messages
15
Seems simple enough: total watts on LED strip should not exceed rated driver capacity but:


  • Driver specs say to de-rate by 20% to be conservative
  • The measured load differs from the load stated by the manufacturer

So, if the driver states 60 watt output I de-rate to 48 watts. The specs on the lights say 72 watts but I measure just 50. To complicate matters further, the driver is a 240-watt driver divided into (4) 60-watt outputs. There is a manual reset for each of the 60-watt outputs so I assume that although the other quarters will be well under 48 watts I have to de-rate each quarter rather than the whole?

My basic questions are:
  • Am I close enough to the spec. to not worry?
  • What bad things might happen when you exceed the rated wattage of a transformer?

Will the lights simply not reach their rated brightness or might I damage the transformer, the LEDs, or both? Also, if used with a dimmer (before the transformer) might this make dimming issues such as flicker worse?

Thanks!
 
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