Trw144 Posted October 16, 2016 Share Posted October 16, 2016 (edited) I have some 24v led strip lighting and need to know the power consumption so that i can match it to my 50w outputs from the home automation kit. On the box the tape says 12w/m and 96w/10m. I had assumed the wattage was the same per metre whether I had one meter (ie. 12w) or 10m (120w). What am I missing? Edited October 16, 2016 by Trw144 Link to comment Share on other sites More sharing options...
Guest Alphonsox Posted October 16, 2016 Share Posted October 16, 2016 I would guess that this is reflecting the voltage drop along the 10m line, So the first led sees 24V but the last sees significantly less and will be dimmer as a result. I believe some of the high power LED strips benefit from being fed from both ends for this very reason. Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 16, 2016 Share Posted October 16, 2016 They also need quite beefy cable sizes too, if any significant distance away from the driver. Link to comment Share on other sites More sharing options...
Trw144 Posted October 17, 2016 Author Share Posted October 17, 2016 Yes I can't remember what size I used but I did beef it up to cover voltage drop. Fortunately the longest runs away have shorter led strip lengths. Link to comment Share on other sites More sharing options...
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