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https://www.ultrafire.com/blogs/explore/what-is-cri-and-why-it-matters-for-your-flashlight 2026-08-03T22:45:56-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/UltraFire_Photo_Gallery_10_544ec90c-b73f-4573-aaed-f299a0530d86.webp?v=1785822356 What Is CRI and Why It Matters for Your Flashlight https://www.ultrafire.com/blogs/explore/understanding-the-difference-between-cri-and-color-temperature-cct 2026-08-03T22:45:57-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/UltraFire_Photo_Gallery_12_5c23a8d4-88d0-4306-9549-a514d979618e.webp?v=1785822357 Understanding the Difference Between CRI and Color Temperature (CCT) https://www.ultrafire.com/blogs/explore/ultrafire-faq-common-questions-answered 2026-08-03T22:45:59-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/ultrafire-faq-common-questions-answered_8f14c62a-5d69-45bd-8045-1da4aae8ad6c.png?v=1785822359 UltraFire FAQ: Common Questions Answered https://www.ultrafire.com/blogs/explore/how-flashlight-design-affects-beam-distance 2026-08-03T22:46:00-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/How_Flashlight_Design_Affects_Beam_Distance_688cde6e-c21d-4690-a3e6-5ec7c0b7aa48.jpg?v=1785822360 How Flashlight Design Affects Beam Distance https://www.ultrafire.com/blogs/explore/zwb2-filter-explained-why-pure-365nm-uv-matters-more-than-you-think 2026-08-03T22:46:03-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/ZWB2_Filter_Explained_Why_Pure_365nm_UV_Matters_More_Than_You_Think_bab83e70-c73e-44eb-8656-f67b2a3796f0.png?v=1785822363 ZWB2 Filter Explained: Why Pure 365nm UV Matters More Than You Think https://www.ultrafire.com/blogs/explore/winter-flashlight-tips-how-cold-weather-affects-performance-and-how-to-take-care-of-your-gear 2026-08-03T22:46:05-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/Winter_Flashlight_Tips_How_Cold_Weather_Affects_Performance_and_How_to_Take_Care_of_Your_Gear_3feb5146-ae34-4b76-aa6e-0ada6c59f888.png?v=1785822365 Winter Flashlight Tips: How Cold Weather Affects Performance—and How to Take Care of Your Gear https://www.ultrafire.com/blogs/explore/how-many-lumens-per-square-foot-do-you-really-need-a-practical-guide 2026-08-03T22:46:07-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/1764831626690_2b3ad676-08d6-469e-8c2a-ef173b21f9e8.png?v=1785822367 How Many Lumens Per Square Foot Do You Really Need? A Practical Guide https://www.ultrafire.com/blogs/explore/a-guide-to-choosing-cri-in-flashlights 2026-08-03T22:46:06-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/CRI-chart-displaying-how-accurately-a-light-source-renders-colors-compared-to-natural-light_b6d57021-dd02-44f4-9dc2-a8265162c710.webp?v=1785822366 A Guide to Choosing CRI in Flashlights https://www.ultrafire.com/blogs/explore/2026-outdoor-essentials-why-ultrafire-is-your-must-have-gear-this-spring 2026-08-03T22:46:07-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/2026_Outdoor_Essentials_Why_UltraFire_is_Your_Must-Have_Gear_This_Spring_2_c14932f4-0abf-49c3-ae2b-4d41ed011117.webp?v=1785822367 2026 Outdoor Essentials: Why UltraFire is Your Must-Have Gear This Spring https://www.ultrafire.com/blogs/explore/why-ultrafire-remains-a-go-to-for-tactical-and-edc-enthusiasts-in-2026 2026-08-03T22:46:10-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/IMG_4810_da263a3c-e6a7-41d8-a569-1ed084234965.jpg?v=1785822370 Why UltraFire Remains a Go-To for Tactical and EDC Enthusiasts in 2026 https://www.ultrafire.com/blogs/explore/shedding-light-on-the-unseen-top-practical-scenarios-for-365nm-uv-flashlights 2026-08-03T22:46:09-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/Best_Uses_for_a_365nm_UV_Flashlight_Resin_Rocks_More_bca9d5cc-e11a-4dc1-9a83-6fa2d1b75560.png?v=1785822369 Shedding Light on the Unseen: Top Practical Scenarios for 365nm UV Flashlights https://www.ultrafire.com/blogs/explore/the-secret-to-true-365nm-uv-why-ultrafire-trusts-the-zwb2-filter 2026-08-03T22:46:12-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/UltraFire_RUV3_365nm_UV_Flashlight_The_High_Performance_UV_Filter_Phone_3_b3fed60a-8d20-4dc6-a654-3131cec44fef.webp?v=1785822372 The Secret to True 365nm UV: Why UltraFire Trusts the ZWB2 Filter https://www.ultrafire.com/blogs/explore/eco-friendly-rechargeable-batteries-guide 2026-08-03T22:46:13-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/DO_NOT_DISPOSE_BATTERIES_37ad5894-eb36-43f8-bed0-ced9cca800ca.png?v=1785822373 The True Environmental Cost of Single-Use Batteries (And How to Stop It) https://www.ultrafire.com/blogs/explore/ultrafire-c15s-365nm-uv-flashlight-field-guide 2026-08-03T22:46:15-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/Field_Application_Image_Placeholder_Scorpions_Yooperlites_6ad5dd74-b0c6-4e60-b3ad-29b240b258fd.webp?v=1785822375 Unlocking the Hidden World: Why a True 365nm UV Flashlight is Your Ultimate Field Tool https://www.ultrafire.com/blogs/explore/demystifying-the-254nm-uv-flashlight-the-ultimate-guide-to-shortwave-ultraviolet-power 2026-08-03T22:46:18-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/Demystifying_the_254nm_UV_Flashlight_The_Ultimate_Guide_to_Shortwave_Ultraviolet_Power_b438004a-ba23-41c0-9cfa-6a419a5dcd36.jpg?v=1785822378 Demystifying the 254nm UV Flashlight: The Ultimate Guide to Shortwave Ultraviolet Power https://www.ultrafire.com/blogs/explore/beyond-the-beam-what-exactly-is-a-310nm-uv-flashlight 2026-08-03T22:46:17-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/Calibrated_for_the_Lab_c5676450-5823-4c5b-a9dd-98fddd6d12dc.webp?v=1785822377 Beyond the Beam: What Exactly is a 310nm UV Flashlight? https://www.ultrafire.com/blogs/explore/what-actually-are-uvb-and-uvc-and-why-getting-the-wrong-wavelegth-matters 2026-08-03T22:46:19-07:00 weekly https://cdn.shopify.com/s/files/1/0630/2721/6625/articles/Youtube_1fd8d96f-5307-4862-ba14-01b8e09f49cf.jpg?v=1785822379 What Actually Are UVB and UVC? 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