This is a custom-made work lamp for Ryobi 18V batteries. It consists of four Nichia LEDs (5000K, CRI80, ~300lm per LED) which are dimmable in two groups with different beam angle lenses. The PCB has a buck led driver for each group. A potentiometer adjusts the current for flicker-free brightness control.

The head of the lamp is connected to the body with a gooseneck for flexible orientation adjustment.

Print instructions

Printing

The lamp uses three different materials and thus needs at least three prints:

• Body: Prusament PETG Prusa Galaxy Black
• Head: Prusament PC Blend Jet Black
• Pushbutton: Flex Filament

I used PC for the head as the heatsinks, which are in contact with the print, reach up to 90°C (at 20°C ambient temperature). This is above the heat deflection temperature for PETG.

The pushbutton can be printed with two colors if the filament is changed after the first part is printed.

BOM

• Printed parts
• 4x LED Nichia NVSW219CT on 10x10mm metal core PCB
• 2x Lens Carclo 10414
• 2x Lens Carclo 10412
• 2x Heatsink Fischer ICK PGA 11 X 11
• 2x Thermally Conductive Foil Fischer WLFT 404 24.5 X 27.7
• Gooseneck 150mm 2x M10x1 outer thread
• Nut M10x1
• 10x Ruthex M3 threaded inserts
• Acrylic glass 36x57mm thickness 2mm
• Screws
  • 6x M3x20 ISO 7380-2
  • 2x M3x20 ISO 14580
  • 8x M3x16 ISO 14580
  • 6x M3x6 ISO 14580
  • 1x M3x6 DIN 966 (pushbutton actuator)