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Are you powering anything else of the hub/Revo? When I’m running a red eye off the Revo i usually only get 2 leds until I travel at sustained 20/22kph. Setting off, around town or slower rides with the Red eye attached I’ll never get all 4 leds showing.
This is which a Shimano Alfine 6v3w hub, which should be the same output as SP8 I believe.
C4r1s-
Tried with/without the redeye. I've used it extensively in the past and expected the light to take a while to warm up. I'm guessing either the LEDs have had it, or something's come loose/failed inside the lamp.
@grams that makes sense. I'll probably pop an email off to Exposure rather than dig out the power supply. They've fixed several lights for me in the past and rather not risk any further damage and a more expensive repair :)
atk
Need a collective internet sense check while troubleshooting dyno/light issues with my SP8/Exposure Revo to figure out which manufacturer to contact...
Both have been in storage for ~3 years. After digging them out, plugging everything in and getting out for an ~100km ride, I'm only getting 2 of the 4 LEDs powering up in the Revo.
I've unplugged everything and taken a multimeter to the hub. I'm getting resitance between the two contacts and 0 between the contact and axle which suggest the wiring in the hub is ok. Giving the wheel a quick spin with the MM set to '20v AC' the contacts are reading up to about 15v and then reducing as the wheel slows.
Am I right in thinking that this voltage is normal even though the hub is labelled 6v3w?
Also checked cable and voltage/resistance is the same so it's not issue with connectors.