Bst900w: Manual

This is a Boost converter. The input voltage must be lower than the output voltage.

Ensure your input voltage is at least 2V lower than your target output. bst900w manual

Your input power supply may not be able to provide enough current. Check the "Input Current" limits. This is a Boost converter

The BST900W features a four-digit LED display and four control buttons: bst900w manual