TBM .... if your enthusiasm prompts you to post pics of your glowing cheeks by way of proving they work .... might I suggest putting them in 'soap box' to protect those of a nervous disposition

K
Ps .... interested to hear how they work out as considering fitting them to mine .... may pick your brains on the subject in the future.
No glowing cheek photos - I promise

Just had them running for 10 mins and stuck the IR thermometer on them. Already 30+ degrees. Got the kits from ebay, the were about £40 the pair. Chris (trimmer) also uses them on the Cobra replicas he works on.