Well it worked great for a trip. I suspect my heated vest was drawing too much power for this tiny device. Otherwise I looked perfect in every way; It was small, easy to use, regulated the vest's temperature for about a ride, then melted in the middle and ran at full power by default. There are still nice lights but is otherwise unusable. I went from joy to confusion. Maybe other users have better luck. I don't think it's infant mortality. Such a small device just can't handle the power demands of a heated vest, at least not the one I have, although admittedly it's quite old.
β Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review
π CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review
π Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review