CREE Flashlight 🔦 How to Fix Frequent Problems - YouTube Click to view on Bing8:04A few simple checks and fixes for 18650 based Ultrafire 501b and similar flashlight. How to repair your flashlight if the LED stops working, if it changes mode by itself or if you need to make itAuthor: motorbikingViews: 255K Part 2 amazon 1,000,000 lumens headlamp repair - YouTube Click to view on Bing5:37Took an led out of skywolfe and soldered it into Cree lamp and it does the Sam thing as it did in SW. Will it burn out like original bulb? It just quit and didn't do strobe thing though.Author: Ta DaViews: 1 Wiring LEDs Correctly: Series & Parallel Circuits Explained Hopefully those looking for practical information on electrical circuits and wiring LED components found this guide first. It’s likely though, you’ve already read the Wikipedia page about Series and parallel circuits here, maybe a few other Google search results on the subject and are still unclear or wanting more specific information as it pertains to LEDs. flashlight parts supply-UltraFire flashlight parts supply UltraFire Flashlight Bulbs LED 1000 Lumens 26 Replacement Bulb XP-L V6 Single Mode 6 volt Drop-In- P60 Design: Surefire,Hugsby, C2 G2 Z2 6P 9P G3 S3 D2, Ultrafire WF501B WF502B. CREE XP-L V6 26 1000LM 5-Mode 3~8 LED Bulb Reflector for UltraFire WF-501B / 502B. Want to build bike light - question about wiring LED Want to build bike light - question about wiring LED driver + Cree LED Maybe the flashlight guys have some input on this. Edit. Just bought a BuckPuck: 3021-D-I-1000 and the wiring plug with the exrternal pot to adjust it. The 3023 are not adjustable, plus a few other features missing.