10W High Power LED Battery powered Torch

thingiverse

This is a super bright LED! I power this 12V LED with just 9V, so the heat isn't too high and consumption stays acceptable. The cooling fins get warm to about 55 degrees Celsius / 131F, but I don't need a fan and the plastic (PETG) doesn't soften (measured in 22 degrees Celsius space). You'll need these parts: - 10W LED (10 pieces for 2 €) - heat sink (1 €) - Voltage Regulator (5 pieces for 1.50 €) - LiPo Charger (10 pieces for 1.50 €) - Battery 18650 (5 €) - Protection Circuit (5 pieces for 1 €) - Switch (10 pieces for 1.50 €) So, all together it doesn't cost much and you'll have lots of parts left over for future projects. I glued an aluminum bracket with 20x30x20mm between the LED and the heat sink, so I have a bit more grip. The switch is screwed with two 2mm screws, but you could also just glue it. The lid on the back is simply glued on with superglue. The consumption is 0.4A directly on the battery when the regulator is set to 9V. With a 3400mA battery you'd have to get about 8.5 hours of runtime. The LED doesn't become darker because the Voltage Regulator always holds 9V. When the battery dies, the LED will start blinking. Charging takes a long time, but it's not a problem. Have fun building! Cooling: https://www.aliexpress.com/item/100-25-10mm-DIY-Cooler-Aluminum-Heatsink-Heat-Sink-Chip-for-IC-LED-Power-Transistor/32673352557.html LED (I use Cold White): https://www.aliexpress.com/item/10PCS-7colors-10W-20W-30W-50W-100W-High-Power-Integrated-LED-COB-lamp-Beads-Chips-SMD/32710676954.html Switch: https://www.aliexpress.com/item/10pcs-6pin-DPDT-Slide-Switch-Miniature-125VAC-Mini-PCB-Latching-Train-Signal-12V-24V-6V-Slide/32692444364.html Voltage booster: https://www.aliexpress.com/item/5pcs-MT3608-DC-DC-Step-Up-Power-Apply-Module-Booster-Power-Module-MAX-output-28V-2A/32667781373.html Battery (18650): https://www.aliexpress.com/item/2PCS-100-New-Original-NCR18650B-3-7-v-3400-mah-18650-Lithium-Rechargeable-Battery-Flashlight-Digital/32324914059.html Protection: https://www.aliexpress.com/item/5PCS-LOT-1S-3-7V-3A-li-ion-BMS-PCM-battery-protection-board-pcm-for-18650/32788165963.html Charger: https://www.aliexpress.com/item/10pcs-lot-TP4056-1A-Lipo-Battery-Charging-Board-Charger-Module-lithium-battery-DIY-MICRO-Port-Mike/32651302113.html