EXTENDED BATTERY LIFE - Keep your Rovelight RT400 Monolight powered longer with this replacement battery power pack, ensuring you're always ready to shoot, avoiding downtime during crucial moments. RAPID RECYCLE TIMES - Benefit from consistently fast recycle times, allowing you to capture more shots in rapid succession and never miss the perfect moment, enhancing your workflow efficiency. OPTIMIZED POWER OUTPUT - Maintain consistent and reliable power output for your Rovelight RT400, ensuring each flash is perfectly illuminated, providing professional-grade lighting every time. ENHANCED PORTABILITY - This lightweight battery power pack, weighing only 10 oz, makes your monolight system even more portable, ideal for on-location shoots where every ounce counts for easy travel.