These get really good reviews. You may need bulb monitoring turning off as the vans are extremely sensitive to different types of bulb.
The ideal LED upgrades for your projector headlights. H7 LED projector bulbs are 300% brighter than standard halogen bulbs and are designed for maximum vision.
www.autobulbsdirect.co.uk
Don't forget H1s for your main beams too. You don't need to spend as much money. Twenty20 ones are around £40.