Dual Power Options to stay ready. With COAST Dual Power technology, you have the choice to power your light with USB-rechargeable batteries or with standard alkaline batteries. Flex Charge Power up on your terms. Lights with COAST Flex Charge technology feature a rechargeable battery that can be recharged either inside or outside the light. A simple USB connection to either AC or DC ensures you can always get juice. Hardhat Compatible Rugged enough for the outside of the hardhat. COAST headlamps with Hardhat Compatible design include clips for attaching the light to the hat. High|Medium|Low Control your light power with the push of a button. Cycle between full light, medium light and low light options. Hinged Beam Up, down, or straight ahead. All COAST headlamps feature a hinged, tilting head so that you can adjust the lights direction and see right where youre looking. Reflective Strap Stay visible in the dark. Some COAST headlamps feature a Reflective Strap to increase safety and ensure user visibility in low light.