The GH-S37A ultra-light 3.7g analog micro servo is tailor-made for tiny RC models with strict weight limits. Built with a high-efficiency coreless motor and durable full nylon gear set, it delivers fast 0.10s/60° response at 6V and stable torque output of 0.7kg·cm, realizing precise, lag-free control of model surfaces.

Compact 17.5×20×8.3mm mini size saves precious space inside micro airframes, while the 150mm extended wire brings flexible wiring layout. Only 3.7 grams greatly reduces overall aircraft weight, extending flight endurance and optimizing balance for nano quadcopters, micro planes and small helicopters.

Equipped with complete mounting screws for easy installation, it works under 3.7–7V wide voltage range and fits most mainstream flight controllers. Cost-effective and reliable, it is an essential upgrade replacement part for all kinds of miniature RC aircraft, boats and DIY robot projects.