Join Date: Jul 2013
Location: Gatton, Queensland, Australia
A comment came up recently relating to the most recent LED headlight bulbs, some of which are now rated 80w.
How can that be ...... ? Such bulbs are frequently used to reduce the load so that the owner can reserve output, particularly when heated gear is used. So how can replacing your 12v 55/60w bulb with a pair of 12v 80watts be of any benefit?
First off I had handy the OEM bulb from my Versys-X 300. Checking the actual watts by using a meter and converting to watts by using the formula ampsXvolts I found that bulb to be 12v 35/45w.
I then checked the leftover Beamtech 25/25w LED, which are advertised as 50w but are declared 25w by the paperwork in the box. This bulb actually consumed 1.01 amps (12.2w).
Conclusion: Advertising hype! The advertised wattage of LED bulbs not only states the wattage for the PAIR of bulbs, but also doubles the actual current draw! Why? Who knows - perhaps bigger is always better. I also have a spare pair of H4 Ironwalls which I was going to check, BUT, neither the bulbs, the leaflet, or the box state any wattage.
Probably those 80w super dooper LED's you just bought draw 20watts each. Lumens and lux are what really matter, but how can you believe what they tell us. I would suggest that peer reviews should be your guide when purchasing LED's..
BTW the OEM 12v 35/45w Versys 300 bulb was not marked (didn't all bulbs once have their specs punched into the metal base?) but my owners manual states that it should have been 12v 55/55w!
2010 Weestrom; 2017 Kawasaki Versys-X300; 1988 Suzuki GSXR1100