450nm 20W Module with Protective Cover Adjustable Focal Length Engraving Head

Professional module, easy to install, with lower loss, provides 450nm wavelength, for efficient, precise engraving and cutting of plastic, wood, leather, paper and so on, suitable for a wide range of engraving machines. This is the upgraded version with protective cover, safer to use than the old one.

Features:
Upgraded version: Equipped with adjustable protective cover to your eyes, no need to wear extra gles while working, safer to use than ordinary head.
With adjustable focal length(5.5W/ 10W/ 20W, 20-70mm) or fixed focal length(30W, 12.6mm/ 40W, 15mm/ 40W, 40mm/ 80W,40mm). Made of premium quality aluminum alloy casing with great durability.
It can engrave paper, wood, fabric, plastic, leather, anodized aluminum, etc. Different modules for engraving/ cutting different kinds of material and different thicknesses.
Features high engraving speed, low power loss, good stability and superior performance, with fine heat dissipation to extend its service life.
Compact and lightweight, easy to emble, has over 30cm long line. Comes with screws, convenient and simple to be installed on the machine.
Wide application, it's designed for engraver, cutting machine, 3D printer, CNC mill and so on, suitable for DIY lover, CNC engineer, artist and more

Note:
1. Avoid eye or skin exposure to direct or scattered light.
2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.

Specifications:
Power: 5.5W/ 10W/ 20W/ 30W/ 40W/ 80W(Optional)
—Adjustable Focal Length: 5.5W/ 10W/ 20W(20-70mm)
—Fixed Focal Length: 30W(12.6mm)/ 40W(40mm)/ 80W(40mm)
Color: Silver
Material: Aluminum Alloy+ Electronic Components
Wave Length: 450nm
Luminous Color: Blue
Operating Voltage: 12V
PWM/ TTL Input: DC 3.3V-12V, 100Hz-50KHz
Input Interface: XH2.54-3 Pin(+, -, PWM/ TTL)
Continuous Working: Unlimited
Operating Temperature: -20℃~70℃
Head Size: Approx.
5.5W/ 10W: 105* 30* 30mm/ 4.13* 1.18* 1.18in
20W: 120* 40* 40mm/ 4.72* 1.57* 1.57in
30W(12.6mm): 115* 40* 40mm/ 4.53* 1.57* 1.57in
40W(40mm): 100* 40* 40mm/ 3.94* 1.57* 1.57in
80W(40mm): 125* 47* 44mm/ 4.92* 1.85* 1.73in
Package Size: Approx. 16* 6* 6cm/ 6.30* 2.36* 2.36in

Packing List:
1* Module
3* Screw
3* Washer
6* Paper Card
1* Shield(Green)
1* User Manual(English)