Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: WHICH  3D GLASSES FOR Panasonic TC-L47DT50?
Document: The Panasonic VIERA TC-L47DT50 47-Inch 1080p 240Hz 3D Full HD IPS LED-LCD TV is a great TV and if it wasn't for a few detrimental flaws, it'd be perfect.It generates outstanding clarity, brilliant colors, deep dark levels and is sufficiently bright when it needs to be.In action scenes and sports it excels when it comes to producing fast moving moments.
We already own an older Panasonic 3D tv, albeit a plasma tv (TC-P50VT25)that we've been more than pleased with so we were eager to see how a Panasonic LED-LCD would compare.The VIERA TC-L47DT50 47-Inch 1080p 240Hz 3D Full HD IPS LED-LCD is pretty awesome although the older plasma would still rate higher (I'd rate that one a 5). On the plus side, the picture and clarity are excellent overall and the tv does shadowing well.
The Viera TC-L47DT50 which I bought from Amazon (Used) was one of the best bargains I've ever received.In Brief:Wireless-  This TV is connected a good Linksys 500 Ghz router and there is no difference between ethernet.Remote-  Buttons are a positioned close to each other making a little difficult to use however on this model this remote does have a Back Light, a surprise to me.3D-  Not Yet.
Love it! My Panasonic VIERA TC-L47DT50 47 Inch 1080p 240Hz Full HD IPS LED-LCDMy order was marked to be delivered early December but, was delivered several days early & left in my garage! I was out of state. After hiring a tech. to set it up for me, when he turn the TV on it was all lines and was broken. Amazon handled the pick-up, and shipment of a new TV replacement very smoothly and very efficently.
I received the TV promptly after taking advantage of the Cyber Monday sale for $799 (TC-L47DT50). Unboxed it with much anticipation, took my time setting everything up, re-running cables, moving speakers, etc... I removed the protective plastic from the outside and noticed a bulge on the back of the display near the top (if you look at the unit from the back, locate the center most screw at the top then move to your left about 2 inches).
Panasonic VIERA TC-L55DT50 55-Inch 1080p 240Hz 3D Full HD IPS LED-LCD TVUsually I read the reviews before purchasing an item, however, in this case, I saw it on sale, it was the newest model and with the right price, I purchased it. Then I decided to read the reviews on Amazon. I was very anxious while waiting for the TV to arrive. Considering the bad reviews I was very surprised when I turned it on after installation. It was absolutely beautiful.
I PURCHASED THIS TELEVISION FOR CYBER MONDAY AND I REALLY HAD PLANNED ON WAITING UNTIL EARLY NEXT YEAR TO MAKE THIS PURCHASE,HOWEVER THE PRICE ,THE 3D FEATURES AND THE 1080P AND 240HZ FEATURE MAKE THIS THE BEST DEAL OF THE YEAR FOR ME.THE DELIVERY AND INSTALL BY THE DELIVERY TEAM INSURED THAT  THERE WERE NO SURPRISED WHEN I MOUNTED THIS ITEM THE NEXT DAY!
I would recommend a safety strap however if you have kiddos. Other tvs I considered were the Sony KDL46HX750 and the other Panasonic TC-L47WT50. The sound on this is decent for out of the box, however if you want more projected sound without the surround sound system, I would recommend a speaker bar of some type. Overall, great product from Panasonic.
]IT APPEARS 3D GLASSES DONT COME FREE. YOU HAVE TO BUY THEM SEPARATELY EACH COSTING A WHOPPING $82 OR MORE.....!!! !
SHOPPED FOR THIS TV FOR MANY MONTHS THROUGH ONLINE REVIEWS AND PRICING. HAD AN INSTALLER ADD BOSTON ACOUSTICS SOUND SYSTEM. DIDN'T NEED/WANT 3-D OPTION. SOUND & PICTURE CLARITY ARE ABSOLUTELY GREAT. WELL WORTH THE PAIN AND ANGUISH!
Answer: You can use either of the samsung active glasses. I have both. the rechargeable ($49.99) are lighter and fit better so i use them, but my kids get the battery powered ones ($19.99).