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My Account My Orders My Wishlist My Coupons My Points My Referrals BGpay200mW refers to the power output, not the power in. The diode isn't 100% efficient, so you should expect the power in to be greater than the power out, although I suspect you may be overdriving it a bit with 400mW and thus shortening its life. (650nm diodes don't like being overdriven.) You really need a laser power meter to measure the output.
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