When you plug in the power cord, the laser will automatically turn on This laser can also be used as a bird repellent to drive away birds, and it can be used in the morning and evening when the sun is not strong.
eBay
New Portable Red Green Cross Line Laser Diode Module Generator for Alignment Woodworks Sawmill Tiles
Aliexpress UK
Power:20mW 50mW 100mW. Wavelength: 532nm. We will solve the problem asap. Laser Shape: DOT. Material :Brass. Size:12x35mm (not include driver board).
eBay
Focusable 515nm 520nm 30mw Waterproof Green Dot/Line/Cross Laser Locator Module 20x108mm
Aliexpress UK
The design adopts simple and fashionable style. The appearance and feel are quite good. The module is made of imported laser tube. The concentricity is high precision, the structure is close, the pressure assembling process is adopted.
eBay
Focusable 520nm 525nm Green Light Laser Module Waterproof Dive Exploration LED Lights
Aliexpress UK
(Waterproof 405nm-450nm-488nm-505nm-520nm-638nm RGB Purple Laser Module DS6. The module is made of imported laser tube. Laser Shape: Dot(Rectangle). 1pc405nm-450nm-488nm-505nm-520nm-638nm laser module （Battery not included for easy custom clearance).
eBay
RGB Green Coarse Beam Laser Module for Escape Room Games, 3 Lighting Modes DC12V, Indoor Stage Lighting Effect, Party Projector
Aliexpress UK
532nm 50mW Fat Beam Green Dot Laser Diode Module. 1pc 532nm 50mW Laser Module. Output power: 50mW. Wavelength: 532nm. Working temperature: 15℃～40℃.
eBay
Green Point 532nm 5mW Laser Module - Focusable Cross Line, Glass Lens, DC 3V-5V, Industrial Grade, Free Customization.
Aliexpress UK
Laser power (constant power): ≤30mw /50mw. Laser wavelength: 532nm. 1pc 532nm 30mw/50mw laser diode module. Light spot mode (light spot size): light spot at 5m <15mm. Laser working mode: dot. Laser working life: more than 6000 hours.
eBay
520nm Green Line Laser Module Focusable D18x65mm 10-100mw High Precision for Cutting Positioning | FREE EU Adapter
Aliexpress UK
5pcs 515nm 520nm 5mW Green Dot Laser Diode Module. Laser wavelength: 515nm. 5pc 520nm 5mW Dot Laser Module. Laser power (constant power): 5mW. Laser working mode: spot spot, CW laser. Flare mode (spot size): spot < 15mm at 5m.
eBay
12mm Green Dot Line Cross Focusable Laser Module for Marking Welding Embroider with USB Connection
Aliexpress UK
532nm 20mw Green Focus Line Laser Module + Heatsink. Output Power: 20mW. 1x 532nm 20mW Laser Line Diode Module. Wavelength: 532nm. 1x Heatsink. Red wire is connected to the positive pole "+‘’and black wire is connected to the negative "-".
eBay
532nm45 Green line Laser Module DC3-5VHorizontal Cross is Optional for WoodStone Cutting Positioning Line Factory Direct Sales
Aliexpress UK