There's no coupon, just checkout and it's 25% off.
Additional Features Adjustable Light Modes, Rechargeable
Power Source Battery Powered
Light Source Type LED
White Brightness 8000 Lumens
Battery Type Lithium Polymer
Number of Batteries 3 Lithium Polymer batteries required. (included)
Water Resistance Level Water Resistant
Brightness 8000 lumen
Battery Description Lithium-polymer rechargeable battery



CamelCamelCamel

how to test the brightness, I got a unbranded light which works with the ryobi battery, it is really (profanity) bright! it even has usb a and c output