Does anyone know what the minimum load requirement is for a voltage stabilizer that will be used with an Aristo D2 cold light (NOT D2-HI)?

I use a Zone VI voltage stabilizer with one of my enlargers and I recently purchased an Aristo stabilizer for my other enlarger but, even though the seller I purchased it from (eBay) said it could handle a 4x5" Aristo cold light, I see it has a maximum load capacity of 100 watts which I don't think is enough. What maximum load capacity do I need for the my head?

BTW, I did look at the Aristo site but could not find the specs I need.