There should be a whole list of compatible bulbs that can be used on the replacement ballast.
Checking RELB-2S40-N does not include 26 watt bulbs.
While it may appear to work initially, such unauthorized use will probably result in premature ballast and/or bulb failure.
You can get the ICF-2s26 ballast at Amazon.
Checking RELB-2S40-N does not include 26 watt bulbs.
While it may appear to work initially, such unauthorized use will probably result in premature ballast and/or bulb failure.
You can get the ICF-2s26 ballast at Amazon.