Pros: VERY NICE. Bright daylight in our kitchen now. Replaced two 40watt daylight florescents with these and wow, what a difference. They use 1/2 the electricity, last longer and are brighter. Cost effectiveness is negotiable however as florescent tubes are super cheap but, these LED alternatives are far superior in the illumination department. Also cooler, last longer and no noise. Wiring was a piece of cake, far easier than the instructions read. Just kill power, remove the ballast, cap off the wires individually on one end of the fixture and run 115 to one end of each tubes socket. Typically already paralleled wiring exists in most 2 tube fixtures. Took 10 minutes.

Cons: 4 Stars due to two reasons. 1- Cost (and I got these on sale for 45 bucks pair here). 2- 1 second time delay when you flip the switch.

Overall Review: Cost of these is high. Basically, 12.225 cents a KWH is our power bill bottom line. So two 40's at 10 hours a day draw around .8 KWH and with ballast, prob close to 1KWH per day. So, ~$3.68 a month for std tubes and ~$1.50 for these LED tubes at 10 hours a day (if they in fact pull 19watts). So, they can pay for themselves in just over a year at 10 hours a day usage. A good investment.

Pros: Came pretty fast. Copter looks fine.

Cons: The charger died right out of the box. On the initial charge there was a "pop" from inside the charger. I cannot test the helicopter until I get a replacement charger. I have contacted the seller to see if they do the right thing. However, I will not the entire heli back or pay for shipping to return just the defective charger, that is not an option. Should they want my return business, they will send a new charger and possibly a prepaid label for the defective one.

Overall Review: The remote control is SUPER CHEAP and poorly constructed. More so than typical cheap china stuff. Also, one of the controllers toggles fell right off because it was not glued in like the other one. I will follow up with more information dependent on sellers response. I have yet to review the seller Hobbytron but, I should have read the reviews before I purchased from this seller.

Pros: Inexpensive and SUPER easy to fly right out of the box. This little novelty copter is fun to fly around our small house. Ceiling fan breeze makes it a bit more fun. Forget about it if the AC is on though unless you have cat like reflexes and no knick knacks on shelves. DOH! This co-axial copter is NOTHING like flying a "real" RC copter (a copter with one rotor blade, it is not supposed to be) but, will get the wanting to fly one itch scratched for the price of a "normal" copters battery (or a case of brew! I suggest getting both.) Very maneuverable and the tail rotor allows you to go forward and backward unlike many in this price range without a rotor. Charges pretty fast and buzzes around for about ten minutes on a 30 to 40 minute charge. Showing kids how to fly uh, this thing can take a beating! Just teach them to kill the throttle when a crash in eminent so no damage is done. (key cause) I am an experienced RC pilot and this thing is great for inside home flying on bad weather days. I have flown it outside on a calm evening (direct sunlight overrides the infra-red signal and it just does whatever it wants) but, any breeze and it just does not have enough oomph to go forward into a breeze. One note, if you plan to store it, you will need to charge the internal LiPO battery ~once a week because if the LiPO discharges too low, you'll have a dead copter that will not charge. For around $25 bucks with free shipping, this is a GREAT buy and should this one ever break, I would buy another for sure.

Cons: None really

Overall Review: Weeks of fun for ~25 bucks, where can you get that?

Pros: When it worked, it was okay for twenty bucks.

Cons: Third time I went to use it, I plugged it in and system did not recognize. Tried on several PC's. No luck. Less than 15 minutes of use! Junk.

Overall Review: Get a different headset. Used it THREE TIMES! Purchased on 11-01-2012 and it is now 12-20-2012 so, out of 30 day warranty and unless Rosewill steps up to the plate and replaces, this was a waste of money. Had issues with other Rosewill products over the last couple years so, THIS IS THE LAST ROSEWILL PRODUCT I WILL EVER PURCHASE whether they replace it or not.

Pros: This is an update to my last review. Support replied to my email and sent a new control panel immediately. I did not have to jump through RMA hoops or send in the defective one. This is rare and I appreciate. Unfortunate the Q.C. line is not up to par but, the support was quite good. I would appreciate a phone number on the Sentey web site instead of email tag. Not placing a phone number on the web site is curious.

Cons: Don't wish to re-hash.

Overall Review: Sentey production manager needs to focus on Q.C. and burn in.

Pros: Cameras are fine

Cons: Hard disk error after a few hours. I even set to reboot daily at 14:00 in attempt to circumvent. The hard disk has never been full and actually, never past 20MB of data stored as I have the unit set to record only on motion. Fact is, we were robbed in two ways. The purchase of this unit and when our car was broken in to and this piece of garbage did not record the incident. It did record me taking out the trash the previous day which is right next to the car. After the stuff out of our car was taken, I discovered the DVR was malfunctioning. Tried working with Vonnic support. Guess what is going right in the trash next week? DO NOT BUY VONNIC PRODUCTS!

Overall Review: Avoid this company.