There are plenty of affordable options on eBay.
Complete wells sub £50, brand new.
I can't comment on the quality of the dynamo...
https://www.ebay.co.uk/itm/700c-29er-28-wheelsON-Front-Wheel-Shimano-Dynamo-Hub-DH-3N31-36H-Silver/263918702650
https://www.ebay.co.uk/itm/Taylor-Wheels-28inch-front-wheel-hub-dynamo-DH-C3000-3N-Nirosta-622-19-silver/331412626329
https://www.ebay.co.uk/itm/28-front-wheel-shimano-hub-dynamo-Dh-3n30-Alu-Black-Quick-Release-Trekking/382376658552
https://www.ebay.co.uk/itm/28-Front-Wheel-Complete-Set-with-Hub-Dynamo-Remodel-Kit-Union-LED-20-Lux/312080412995
These are choice!!!!!
@broken_777 started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
There are plenty of affordable options on eBay.
Complete wells sub £50, brand new.
I can't comment on the quality of the dynamo...
https://www.ebay.co.uk/itm/700c-29er-28-wheelsON-Front-Wheel-Shimano-Dynamo-Hub-DH-3N31-36H-Silver/263918702650
https://www.ebay.co.uk/itm/Taylor-Wheels-28inch-front-wheel-hub-dynamo-DH-C3000-3N-Nirosta-622-19-silver/331412626329
https://www.ebay.co.uk/itm/28-front-wheel-shimano-hub-dynamo-Dh-3n30-Alu-Black-Quick-Release-Trekking/382376658552
https://www.ebay.co.uk/itm/28-Front-Wheel-Complete-Set-with-Hub-Dynamo-Remodel-Kit-Union-LED-20-Lux/312080412995