United States
LY-838-4 Optics Equipment Lens Tester Photochromic Lens Tester
OPERATOIN INSTRUCTION
1.Put lens inside the machine after power on to make it work. Light on when lens inside; light off when lens outside. It will go off automatically after 240S.
2.Timing function: Screen will show 30s, 60s, 90s,120s,150s,180s, circularly for non-stop press after lens inside; Screen will
show count down time until 0 then off finally if time chosen.
3.The machine will work with weaken brightness for long press on screen for 2s; pressing 2s again to recover in normal model.
4.LED light will go off automatically then closed finally after 2s if lens removing.
Processing time
According your order list. we will supply delivery time .
Commonly is 5-7 work days after we confirm payment
Shipping time
By Express : 3-7 days . Door to door service
By Air : 3-7 days . (the goods arrival at your local air ports
By sea : 30-40 days (the goods arrival at your local sea ports )
PS : by air or by sea, if you need door to door service, please tell us . we will help you checking the extra door to door cost.
How many months warranty do you provide ?
one year
What should I do if the machine have question ?
For ensuring all the items are in good quality, we will test all products before the packages were sent out. Once the machine have some question, please don't worry. kindly send us some images of the situation , Video and machine series, and explain the question in where . we will supply solution to you deal soon.
What should I do if the spare parts is broken in Warranty ?
If in Warranty, some spare parts broken in the Use. kindly supply picture or video , and machine series number .
We will send the spare parts by express to you soon.. and we bear express cost .
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