My results: I use my own lumen testing gear that has been calibrated and is continually updated and re-calibrated as needed. It is +/- 5% accuracy on the last 10 lights tested. Using 4 30q cells matched as close as I could for resistance and all were purchased in the last two months. Moonlight .17 lumen Low 232 lumen Mid1 619 lumen Mid2 1354 lumen High 2300 lumen Turbo 4515 lumen That turbo output is correct for the NW version of this light. I am actually kind of shocked as well as pleased. This is the first light in a long time that hit the numbers that close to what is claimed. I checked all levels twice and all are correct according to my equipment. My lumen tube has been calibrated using more known light sources now than I even keep up with so it is usually dead on and will tell on any company adding lumen. You can find my full review here http://budgetlightforum.com/node/56675

My results: I use my own lumen testing gear that has been calibrated and is continually updated and re-calibrated as needed. It is +/- 5% accuracy on the last 10 lights tested. Using 4 30q cells matched as close as I could for resistance and all were purchased in the last two months. Moonlight .17 lumen Low 232 lumen Mid1 619 lumen Mid2 1354 lumen High 2300 lumen Turbo 4515 lumen That turbo output is correct for the NW version of this light. I am actually kind of shocked as well as pleased. This is the first light in a long time that hit the numbers that close to what is claimed. I checked all levels twice and all are correct according to my equipment. My lumen tube has been calibrated using more known light sources now than I even keep up with so it is usually dead on and will tell on any company adding lumen. You can find my full review here http://budgetlightforum.com/node/56675

My results: I use my own lumen testing gear that has been calibrated and is continually updated and re-calibrated as needed. It is +/- 5% accuracy on the last 10 lights tested. Using 4 30q cells matched as close as I could for resistance and all were purchased in the last two months. Moonlight .17 lumen Low 232 lumen Mid1 619 lumen Mid2 1354 lumen High 2300 lumen Turbo 4515 lumen That turbo output is correct for the NW version of this light. I am actually kind of shocked as well as pleased. This is the first light in a long time that hit the numbers that close to what is claimed. I checked all levels twice and all are correct according to my equipment. My lumen tube has been calibrated using more known light sources now than I even keep up with so it is usually dead on and will tell on any company adding lumen. You can find my full review here http://budgetlightforum.com/node/56675

great product can be used with 4 18650 laptop batteries only issue is the packaging doesn’t protect the glass from breaking in transit my glass lens was smashed only found out this week when my daughter delivered it to me in Perth she said was broken when received in Hong Kong my daughter said the Hong Kong delivery men throw parcels around and don’t take any care when they sort out their runs at depot points around the city I have attached pictures of the packaging which is not Banggood’s fault it is poor packaging by the manufacturer Banggood never offer or do extra packaging only put original item as received into a flimsy post pack. you would think for an expensive quality item the manufacturer would pack the item better to protect the glass when I am in HK next I will take a video of the delivery men throwing the packages around sometimes throw them 5 to 8 metres !!!!

great product can be used with 4 18650 laptop batteries only issue is the packaging doesn’t protect the glass from breaking in transit my glass lens was smashed only found out this week when my daughter delivered it to me in Perth she said was broken when received in Hong Kong my daughter said the Hong Kong delivery men throw parcels around and don’t take any care when they sort out their runs at depot points around the city I have attached pictures of the packaging which is not Banggood’s fault it is poor packaging by the manufacturer Banggood never offer or do extra packaging only put original item as received into a flimsy post pack. you would think for an expensive quality item the manufacturer would pack the item better to protect the glass when I am in HK next I will take a video of the delivery men throwing the packages around sometimes throw them 5 to 8 metres !!!!

great product can be used with 4 18650 laptop batteries only issue is the packaging doesn’t protect the glass from breaking in transit my glass lens was smashed only found out this week when my daughter delivered it to me in Perth she said was broken when received in Hong Kong my daughter said the Hong Kong delivery men throw parcels around and don’t take any care when they sort out their runs at depot points around the city I have attached pictures of the packaging which is not Banggood’s fault it is poor packaging by the manufacturer Banggood never offer or do extra packaging only put original item as received into a flimsy post pack. you would think for an expensive quality item the manufacturer would pack the item better to protect the glass when I am in HK next I will take a video of the delivery men throwing the packages around sometimes throw them 5 to 8 metres !!!!