How do I change batteries in the EL530, EL520, or EL410 lights?
To change batteries in the HL-EL530, HL-EL520, or the HL-EL410 (Compact Opticube): holding the light body in one hand unscrew the top of the light until it comes off in your hand. (Top of the light being the end where that houses the LEDs, or the metallic looking end in the 530 &520) Pay attention to the battery orientation (+/-) ends. There is also a diagram printed inside each light – but it can be small and difficult to read. After you replace the batteries screw the top of the light back on the same way you removed it.