18.3mm in Diameter at the widest point
67.8mm Long
http://www.solarforce.hk/index.php?controller=products&action=view&id=94 Link to product page .
http://www.solarforceflashlight-sales.com/product_detail.php?t=BC&s=23&i... $7.50 each + postage [ $2 usually ]
Review to follow : [ there on the charger ATM ] , so this post will be updated !
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Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….