Disc brake dynamo hubs

Recently, dynamo hubs have been undergoing a revival of sorts, with a number of new (relatively) lightweight energy efficient models. Here's a brief summary of what's available as at 2014:

Manufacturer / ModelWeightOutputCentre lock6-boltNotes
SONdelux395g6V / 3WX
20,24,28,32,36 hole drillings available, radial spoking permitted, centre lock disc mount
SON286-bolt: 460g center lock 430g6V / 3WXX32, 36 hole drillings available, 6-bolt and center lock versions
Supernova INFINITY S399g
32 hole only, Center lock only
Shimano 3D71490g

SP Dynamo System SD-8385g6V / 2,4W (on 700C wheels)
X20,24,28 and 32 hole drillings available
SP Dynamo System PD-8410g6V / 3W
X32 and 36 hole drillings
Biologic JouleHG656g6V / 2.4W
X32 hole, 6-bolt disc, claimed to have almost zero drag when switched off (mechanically).
Biologic Joule3
416g6V / 3W
X32 hole, 6-bolt disc, 73% claimed efficiency.
SRAM I-Light Dynamo 730
720g6V / 3W
X32 and 36 hole drillings, 6-bolt disc.  Cheap - often available for less than $100

There's some good test information on dynamo hubs here.

15mm thru-axle dynamo hubs

Manufacturer / ModelWeightOutputCentre lock6-boltNotes
SON28 15
6V / 3W
X32, 36 hole drillings available
SP Dynamo System PD-8x420g6V / 2.4WX
X32 and 36 hole drillings

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