I've been running them for a couple of weeks now. I'm still on the fence about them. I love the low power draw, I still get a kick out the instant on and instant high beam effect ( yeah, I'm easily amused. But the quick switching is so apparent). But I'm still disappointed by the high beam performance.

This evening I did a quick and dirty comparison of the led bulb and an 80/100w halogen bulb. One in each lamp. Pics were taken, conclusions might be drawn.

https://shufti.blog/2017/02/12/vanagon-h4-led-bulb-update/

Alistair